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103121212022020 = 2251131392231472041
BaseRepresentation
bin10111011100100111000111…
…001101100001110100000100
3111112010021212120101111212201
4113130213013031201310010
5102004014220234201040
61003153121504324244
730502155523450543
oct2734470715416404
9445107776344781
10103121212022020
112a948507905065
12b6956b9313684
134570399ca36aa
141b67143dd015a
15bdc6455cba9a
hex5dc9c7361d04

103121212022020 has 96 divisors (see below), whose sum is σ = 221029579330560. Its totient is φ = 40407286026240.

The previous prime is 103121212022009. The next prime is 103121212022029. The reversal of 103121212022020 is 20220212121301.

It is not an unprimeable number, because it can be changed into a prime (103121212022029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69317200 + ... + 70789240.

It is an arithmetic number, because the mean of its divisors is an integer number (2302391451360).

Almost surely, 2103121212022020 is an apocalyptic number.

103121212022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103121212022020 is an abundant number, since it is smaller than the sum of its proper divisors (117908367308540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103121212022020 is a wasteful number, since it uses less digits than its factorization.

103121212022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472525 (or 1472523 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 103121212022020 its reverse (20220212121301), we get a palindrome (123341424143321).

The spelling of 103121212022020 in words is "one hundred three trillion, one hundred twenty-one billion, two hundred twelve million, twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 113 139 223 226 278 446 452 556 565 695 892 1115 1130 1390 2230 2260 2780 4460 15707 25199 30997 31414 50398 61994 62828 78535 100796 123988 125995 154985 157070 251990 309970 314140 503980 619940 1472041 2944082 3502661 5888164 7005322 7360205 14010644 14720410 17513305 29440820 35026610 70053220 166340633 204613699 328265143 332681266 409227398 656530286 665362532 818454796 831703165 1023068495 1313060572 1641325715 1663406330 2046136990 3282651430 3326812660 4092273980 6565302860 23121347987 37093961159 45628854877 46242695974 74187922318 91257709754 92485391948 115606739935 148375844636 182515419508 185469805795 228144274385 231213479870 370939611590 456288548770 462426959740 741879223180 912577097540 5156060601101 10312121202202 20624242404404 25780303005505 51560606011010 103121212022020