12311121032 has 24 divisors (see below), whose sum is σ = 26852063310. Its totient is φ = 5276194560.

The previous prime is 12311121029. The next prime is 12311121049. The reversal of 12311121032 is 23012111321.

12311121032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10327843876 + 1983277156 = 101626^2 + 44534^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12311121032.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15702569 + ... + 15703352.

Almost surely, 2^12311121032 is an apocalyptic number.

It is an amenable number.

12311121032 is an abundant number, since it is smaller than the sum of its proper divisors (14540942278).

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

12311121032 is a wasteful number, since it uses less digits than its factorization.

12311121032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31405941 (or 31405930 counting only the distinct ones).

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

Adding to 12311121032 its reverse (23012111321), we get a palindrome (35323232353).

The spelling of 12311121032 in words is "twelve billion, three hundred eleven million, one hundred twenty-one thousand, thirty-two".