31031000122 has 8 divisors (see below), whose sum is σ = 46617783156. Its totient is φ = 15491739072.

The previous prime is 31031000111. The next prime is 31031000159. The reversal of 31031000122 is 22100013013.

It can be written as a sum of positive squares in 2 ways, for example, as 23332868001 + 7698132121 = 152751^2 + 87739^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11878863 + ... + 11881474.

Almost surely, 2^31031000122 is an apocalyptic number.

31031000122 is a deficient number, since it is larger than the sum of its proper divisors (15586783034).

31031000122 is a wasteful number, since it uses less digits than its factorization.

31031000122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23760992.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 31031000122 its reverse (22100013013), we get a palindrome (53131013135).

The spelling of 31031000122 in words is "thirty-one billion, thirty-one million, one hundred twenty-two", and thus it is an aban number.