202031131331100 has 72 divisors (see below), whose sum is σ = 584614534775040. Its totient is φ = 53868412767680.

The previous prime is 202031131331093. The next prime is 202031131331221. The reversal of 202031131331100 is 1133131130202.

It is a happy number.

202031131331100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38502612 + ... + 43434011.

It is an arithmetic number, because the mean of its divisors is an integer number (8119646316320).

Almost surely, 2^{202031131331100} is an apocalyptic number.

202031131331100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202031131331100 is an abundant number, since it is smaller than the sum of its proper divisors (382583403443940).

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

202031131331100 is a wasteful number, since it uses less digits than its factorization.

202031131331100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81944859 (or 81944852 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 202031131331100 its reverse (1133131130202), we get a palindrome (203164262461302).

The spelling of 202031131331100 in words is "two hundred two trillion, thirty-one billion, one hundred thirty-one million, three hundred thirty-one thousand, one hundred".