12031131122 has 16 divisors (see below), whose sum is σ = 18884157912. Its totient is φ = 5742547200.

The previous prime is 12031131097. The next prime is 12031131181. The reversal of 12031131122 is 22113113021.

It can be written as a sum of positive squares in 4 ways, for example, as 10847014201 + 1184116921 = 104149^2 + 34411^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12031131122.

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, 1529879 + ... + 1537722.

Almost surely, 2^12031131122 is an apocalyptic number.

12031131122 is a deficient number, since it is larger than the sum of its proper divisors (6853026790).

12031131122 is a wasteful number, since it uses less digits than its factorization.

12031131122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3067693.

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

Adding to 12031131122 its reverse (22113113021), we get a palindrome (34144244143).

The spelling of 12031131122 in words is "twelve billion, thirty-one million, one hundred thirty-one thousand, one hundred twenty-two".