31211011122 has 16 divisors (see below), whose sum is σ = 62487534240. Its totient is φ = 10392751712.

The previous prime is 31211011103. The next prime is 31211011133. The reversal of 31211011122 is 22111011213.

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, 2723472 + ... + 2734907.

It is an arithmetic number, because the mean of its divisors is an integer number (3905470890).

Almost surely, 2^31211011122 is an apocalyptic number.

31211011122 is an abundant number, since it is smaller than the sum of its proper divisors (31276523118).

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

31211011122 is a wasteful number, since it uses less digits than its factorization.

31211011122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5459337.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 31211011122 its reverse (22111011213), we get a palindrome (53322022335).

Subtracting from 31211011122 its reverse (22111011213), we obtain a palindrome (9099999909).

The spelling of 31211011122 in words is "thirty-one billion, two hundred eleven million, eleven thousand, one hundred twenty-two".