31312102222010 has 16 divisors (see below), whose sum is σ = 56647884429576. Its totient is φ = 12461263015488.

The previous prime is 31312102221947. The next prime is 31312102222019. The reversal of 31312102222010 is 1022220121313.

It can be written as a sum of positive squares in 4 ways, for example, as 30332324935441 + 979777286569 = 5507479^2 + 989837^2 .

It is not an unprimeable number, because it can be changed into a prime (31312102222019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7947232097 + ... + 7947236036.

Almost surely, 2^{31312102222010} is an apocalyptic number.

31312102222010 is a deficient number, since it is larger than the sum of its proper divisors (25335782207566).

31312102222010 is a wasteful number, since it uses less digits than its factorization.

31312102222010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15894468337.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31312102222010 its reverse (1022220121313), we get a palindrome (32334322343323).

The spelling of 31312102222010 in words is "thirty-one trillion, three hundred twelve billion, one hundred two million, two hundred twenty-two thousand, ten".