202131313202120 has 32 divisors (see below), whose sum is σ = 465888026774520. Its totient is φ = 78880512468480.

The previous prime is 202131313202101. The next prime is 202131313202131. The reversal of 202131313202120 is 21202313131202.

It can be written as a sum of positive squares in 4 ways, for example, as 177349893329284 + 24781419872836 = 13317278^2 + 4978094^2 .

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, 61625398727 + ... + 61625402006.

Almost surely, 2^{202131313202120} is an apocalyptic number.

202131313202120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202131313202120 is an abundant number, since it is smaller than the sum of its proper divisors (263756713572400).

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

202131313202120 is a wasteful number, since it uses less digits than its factorization.

202131313202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123250800785 (or 123250800781 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 202131313202120 its reverse (21202313131202), we get a palindrome (223333626333322).

The spelling of 202131313202120 in words is "two hundred two trillion, one hundred thirty-one billion, three hundred thirteen million, two hundred two thousand, one hundred twenty".