202131131031212 has 6 divisors (see below), whose sum is σ = 353729479304628. Its totient is φ = 101065565515604.

The previous prime is 202131131031211. The next prime is 202131131031227. The reversal of 202131131031212 is 212130131131202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (202131131031211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25266391378898 + ... + 25266391378905.

It is an arithmetic number, because the mean of its divisors is an integer number (58954913217438).

Almost surely, 2^{202131131031212} is an apocalyptic number.

It is an amenable number.

202131131031212 is a deficient number, since it is larger than the sum of its proper divisors (151598348273416).

202131131031212 is a wasteful number, since it uses less digits than its factorization.

202131131031212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50532782757807 (or 50532782757805 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 202131131031212 its reverse (212130131131202), we get a palindrome (414261262162414).

The spelling of 202131131031212 in words is "two hundred two trillion, one hundred thirty-one billion, one hundred thirty-one million, thirty-one thousand, two hundred twelve".