12311031332 has 12 divisors (see below), whose sum is σ = 21909462960. Its totient is φ = 6051184776.

The previous prime is 12311031331. The next prime is 12311031373. The reversal of 12311031332 is 23313011321.

It is a super-2 number, since 2×12311031332² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12311031331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26082458 + ... + 26082929.

It is an arithmetic number, because the mean of its divisors is an integer number (1825788580).

Almost surely, 2^12311031332 is an apocalyptic number.

It is an amenable number.

12311031332 is a deficient number, since it is larger than the sum of its proper divisors (9598431628).

12311031332 is a wasteful number, since it uses less digits than its factorization.

12311031332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52165450 (or 52165448 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 12311031332 its reverse (23313011321), we get a palindrome (35624042653).

The spelling of 12311031332 in words is "twelve billion, three hundred eleven million, thirty-one thousand, three hundred thirty-two".