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1203122130220 = 225193166110869
BaseRepresentation
bin10001100000011111101…
…010101100110100101100
311021000110122112202111001
4101200133222230310230
5124202443231131340
62320412350410044
7152631326241343
oct21403752546454
94230418482431
101203122130220
114242720937aa
1217520b200924
13895b939093a
1442335042b5a
1521468d5629a
hex1181faacd2c

1203122130220 has 24 divisors (see below), whose sum is σ = 2659533130800. Its totient is φ = 455919964992.

The previous prime is 1203122130139. The next prime is 1203122130233. The reversal of 1203122130220 is 220312213021.

It is a super-2 number, since 2×12031221302202 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1583055055 + ... + 1583055814.

It is an arithmetic number, because the mean of its divisors is an integer number (110813880450).

Almost surely, 21203122130220 is an apocalyptic number.

1203122130220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203122130220 is an abundant number, since it is smaller than the sum of its proper divisors (1456411000580).

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

1203122130220 is a wasteful number, since it uses less digits than its factorization.

1203122130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3166110897 (or 3166110895 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1203122130220 its reverse (220312213021), we get a palindrome (1423434343241).

The spelling of 1203122130220 in words is "one trillion, two hundred three billion, one hundred twenty-two million, one hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 3166110869 6332221738 12664443476 15830554345 31661108690 60156106511 63322217380 120312213022 240624426044 300780532555 601561065110 1203122130220