31431113200102 has 48 divisors (see below), whose sum is σ = 59835376318032. Its totient is φ = 12244769671680.

The previous prime is 31431113200099. The next prime is 31431113200117. The reversal of 31431113200102 is 20100231113413.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 10524298 + ... + 13176610.

It is an arithmetic number, because the mean of its divisors is an integer number (1246570339959).

Almost surely, 2^{31431113200102} is an apocalyptic number.

31431113200102 is a deficient number, since it is larger than the sum of its proper divisors (28404263117930).

31431113200102 is a wasteful number, since it uses less digits than its factorization.

31431113200102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663333 (or 2663326 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 31431113200102 its reverse (20100231113413), we get a palindrome (51531344313515).

The spelling of 31431113200102 in words is "thirty-one trillion, four hundred thirty-one billion, one hundred thirteen million, two hundred thousand, one hundred two".