31330223112102 has 128 divisors (see below), whose sum is σ = 65639030607360. Its totient is φ = 9959949941760.

The previous prime is 31330223112079. The next prime is 31330223112119. The reversal of 31330223112102 is 20121132203313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5993918013 + ... + 5993923239.

It is an arithmetic number, because the mean of its divisors is an integer number (512804926620).

Almost surely, 2^{31330223112102} is an apocalyptic number.

31330223112102 is an abundant number, since it is smaller than the sum of its proper divisors (34308807495258).

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

31330223112102 is a wasteful number, since it uses less digits than its factorization.

31330223112102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6918.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31330223112102 its reverse (20121132203313), we get a palindrome (51451355315415).

The spelling of 31330223112102 in words is "thirty-one trillion, three hundred thirty billion, two hundred twenty-three million, one hundred twelve thousand, one hundred two".