31113033312102 has 32 divisors (see below), whose sum is σ = 74858426016000. Its totient is φ = 8421572926368.

The previous prime is 31113033312077. The next prime is 31113033312113. The reversal of 31113033312102 is 20121333031113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19494380977 + ... + 19494382572.

It is an arithmetic number, because the mean of its divisors is an integer number (2339325813000).

Almost surely, 2^{31113033312102} is an apocalyptic number.

31113033312102 is an abundant number, since it is smaller than the sum of its proper divisors (43745392703898).

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

31113033312102 is a wasteful number, since it uses less digits than its factorization.

31113033312102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38988763580.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 31113033312102 its reverse (20121333031113), we get a palindrome (51234366343215).

The spelling of 31113033312102 in words is "thirty-one trillion, one hundred thirteen billion, thirty-three million, three hundred twelve thousand, one hundred two".