31113131102 has 16 divisors (see below), whose sum is σ = 47130550272. Its totient is φ = 15402997560.

The previous prime is 31113131057. The next prime is 31113131131. The reversal of 31113131102 is 20113131113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2182883 + ... + 2197089.

It is an arithmetic number, because the mean of its divisors is an integer number (2945659392).

Almost surely, 2^31113131102 is an apocalyptic number.

31113131102 is a deficient number, since it is larger than the sum of its proper divisors (16017419170).

31113131102 is a wasteful number, since it uses less digits than its factorization.

31113131102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24943.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 31113131102 its reverse (20113131113), we get a palindrome (51226262215).

The spelling of 31113131102 in words is "thirty-one billion, one hundred thirteen million, one hundred thirty-one thousand, one hundred two".