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120201012020 = 2256608390947
BaseRepresentation
bin110111111110010001…
…0011110001100110100
3102111021000102002011002
41233330202132030310
53432132424341040
6131115232502432
711453456513165
oct1577442361464
9374230362132
10120201012020
1146a82379461
121b3670aaa18
13b447a371ab
145b63d0d76c
1531d795ea15
hex1bfc89e334

120201012020 has 24 divisors (see below), whose sum is σ = 252428720544. Its totient is φ = 48079148576.

The previous prime is 120201011999. The next prime is 120201012023. The reversal of 120201012020 is 20210102021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 120201011992 and 120201012010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120201012023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1276187 + ... + 1367133.

It is an arithmetic number, because the mean of its divisors is an integer number (10517863356).

Almost surely, 2120201012020 is an apocalyptic number.

120201012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120201012020 is an abundant number, since it is smaller than the sum of its proper divisors (132227708524).

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

120201012020 is a wasteful number, since it uses less digits than its factorization.

120201012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157039 (or 157037 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 120201012020 its reverse (20210102021), we get a palindrome (140411114041).

Subtracting from 120201012020 its reverse (20210102021), we obtain a palindrome (99990909999).

The spelling of 120201012020 in words is "one hundred twenty billion, two hundred one million, twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 66083 90947 132166 181894 264332 330415 363788 454735 660830 909470 1321660 1818940 6010050601 12020101202 24040202404 30050253005 60100506010 120201012020