31211310000122 has 16 divisors (see below), whose sum is σ = 53505181181760. Its totient is φ = 13376256133248.

The previous prime is 31211310000109. The next prime is 31211310000139. The reversal of 31211310000122 is 22100001311213.

It is a self number, because there is not a number n which added to its sum of digits gives 31211310000122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12484529 + ... + 14774507.

It is an arithmetic number, because the mean of its divisors is an integer number (3344073823860).

Almost surely, 2^{31211310000122} is an apocalyptic number.

31211310000122 is a deficient number, since it is larger than the sum of its proper divisors (22293871181638).

31211310000122 is a wasteful number, since it uses less digits than its factorization.

31211310000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3263525.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 31211310000122 its reverse (22100001311213), we get a palindrome (53311311311335).

The spelling of 31211310000122 in words is "thirty-one trillion, two hundred eleven billion, three hundred ten million, one hundred twenty-two", and thus it is an aban number.