12331311032 has 8 divisors (see below), whose sum is σ = 23121208200. Its totient is φ = 6165655512.

The previous prime is 12331311023. The next prime is 12331311053. The reversal of 12331311032 is 23011313321.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×12331311032² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12331310995 and 12331311013.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 770706932 + ... + 770706947.

It is an arithmetic number, because the mean of its divisors is an integer number (2890151025).

Almost surely, 2^12331311032 is an apocalyptic number.

It is an amenable number.

12331311032 is a deficient number, since it is larger than the sum of its proper divisors (10789897168).

12331311032 is a wasteful number, since it uses less digits than its factorization.

12331311032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541413885 (or 1541413881 counting only the distinct ones).

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

Adding to 12331311032 its reverse (23011313321), we get a palindrome (35342624353).

The spelling of 12331311032 in words is "twelve billion, three hundred thirty-one million, three hundred eleven thousand, thirty-two".