202131322113 has 32 divisors (see below), whose sum is σ = 309647462400. Its totient is φ = 114889769280.

The previous prime is 202131322109. The next prime is 202131322117. The reversal of 202131322113 is 311223131202.

It is an interprime number because it is at equal distance from previous prime (202131322109) and next prime (202131322117).

It is not a de Polignac number, because 202131322113 - 2² = 202131322109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 202131322113.

It is not an unprimeable number, because it can be changed into a prime (202131322117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24990556 + ... + 24998642.

It is an arithmetic number, because the mean of its divisors is an integer number (9676483200).

Almost surely, 2^202131322113 is an apocalyptic number.

It is an amenable number.

202131322113 is a deficient number, since it is larger than the sum of its proper divisors (107516140287).

202131322113 is a wasteful number, since it uses less digits than its factorization.

202131322113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14277.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 202131322113 its reverse (311223131202), we get a palindrome (513354453315).

The spelling of 202131322113 in words is "two hundred two billion, one hundred thirty-one million, three hundred twenty-two thousand, one hundred thirteen".