31113010100 has 36 divisors (see below), whose sum is σ = 67577239884. Its totient is φ = 12433774080.

The previous prime is 31113010081. The next prime is 31113010111. The reversal of 31113010100 is 101031113.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 404653456 + 30708356644 = 20116^2 + 175238^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33029 + ... + 251628.

Almost surely, 2^31113010100 is an apocalyptic number.

It is an amenable number.

31113010100 is an abundant number, since it is smaller than the sum of its proper divisors (36464229784).

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

31113010100 is a wasteful number, since it uses less digits than its factorization.

31113010100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285764 (or 285757 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 11.

Adding to 31113010100 its reverse (101031113), we get a palindrome (31214041213).

The spelling of 31113010100 in words is "thirty-one billion, one hundred thirteen million, ten thousand, one hundred".