12331433532131 has 12 divisors (see below), whose sum is σ = 14344959637008. Its totient is φ = 10569630082032.

The previous prime is 12331433532127. The next prime is 12331433532133. The reversal of 12331433532131 is 13123533413321.

It is not a de Polignac number, because 12331433532131 - 2² = 12331433532127 is a prime.

It is a super-2 number, since 2×12331433532131² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12331433532091 and 12331433532100.

It is not an unprimeable number, because it can be changed into a prime (12331433532133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1099925 + ... + 5086521.

It is an arithmetic number, because the mean of its divisors is an integer number (1195413303084).

Almost surely, 2^{12331433532131} is an apocalyptic number.

12331433532131 is a deficient number, since it is larger than the sum of its proper divisors (2013526104877).

12331433532131 is an equidigital number, since it uses as much as digits as its factorization.

12331433532131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4049738 (or 4049731 counting only the distinct ones).

The product of its digits is 58320, while the sum is 35.

Adding to 12331433532131 its reverse (13123533413321), we get a palindrome (25454966945452).

The spelling of 12331433532131 in words is "twelve trillion, three hundred thirty-one billion, four hundred thirty-three million, five hundred thirty-two thousand, one hundred thirty-one".