31112111110100 has 36 divisors (see below), whose sum is σ = 67590263375964. Its totient is φ = 12430654164480.

The previous prime is 31112111110061. The next prime is 31112111110141. The reversal of 31112111110100 is 101111121113.

It can be written as a sum of positive squares in 6 ways, for example, as 1829597095876 + 29282514014224 = 1352626^2 + 5411332^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177290357 + ... + 177465756.

It is an arithmetic number, because the mean of its divisors is an integer number (1877507315999).

Almost surely, 2^{31112111110100} is an apocalyptic number.

It is an amenable number.

31112111110100 is an abundant number, since it is smaller than the sum of its proper divisors (36478152265864).

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

31112111110100 is a wasteful number, since it uses less digits than its factorization.

31112111110100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354757004 (or 354756997 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 14.

Adding to 31112111110100 its reverse (101111121113), we get a palindrome (31213222231213).

The spelling of 31112111110100 in words is "thirty-one trillion, one hundred twelve billion, one hundred eleven million, one hundred ten thousand, one hundred".