12311522132 has 48 divisors (see below), whose sum is σ = 26534981760. Its totient is φ = 4867212672.

The previous prime is 12311522129. The next prime is 12311522137. The reversal of 12311522132 is 23122511321.

It is a junction number, because it is equal to n+sod(n) for n = 12311522098 and 12311522107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311522137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 570719 + ... + 591897.

It is an arithmetic number, because the mean of its divisors is an integer number (552812120).

Almost surely, 2^12311522132 is an apocalyptic number.

It is an amenable number.

12311522132 is an abundant number, since it is smaller than the sum of its proper divisors (14223459628).

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

12311522132 is a wasteful number, since it uses less digits than its factorization.

12311522132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22800 (or 22798 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The spelling of 12311522132 in words is "twelve billion, three hundred eleven million, five hundred twenty-two thousand, one hundred thirty-two".