31330231011102 has 64 divisors (see below), whose sum is σ = 64277866414080. Its totient is φ = 10175066748000.

The previous prime is 31330231011083. The next prime is 31330231011133. The reversal of 31330231011102 is 20111013203313.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 560732227 + ... + 560788097.

It is an arithmetic number, because the mean of its divisors is an integer number (1004341662720).

Almost surely, 2^{31330231011102} is an apocalyptic number.

31330231011102 is an abundant number, since it is smaller than the sum of its proper divisors (32947635402978).

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

31330231011102 is a wasteful number, since it uses less digits than its factorization.

31330231011102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61309.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 31330231011102 its reverse (20111013203313), we get a palindrome (51441244214415).

The spelling of 31330231011102 in words is "thirty-one trillion, three hundred thirty billion, two hundred thirty-one million, eleven thousand, one hundred two".