12131020123231 has 8 divisors (see below), whose sum is σ = 12549937267728. Its totient is φ = 11717961960000.

The previous prime is 12131020123219. The next prime is 12131020123247. The reversal of 12131020123231 is 13232102013121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12131020123231 - 2¹⁵ = 12131020090463 is a prime.

It is a super-2 number, since 2×12131020123231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131020103231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1464741105 + ... + 1464749386.

It is an arithmetic number, because the mean of its divisors is an integer number (1568742158466).

Almost surely, 2^{12131020123231} is an apocalyptic number.

12131020123231 is a deficient number, since it is larger than the sum of its proper divisors (418917144497).

12131020123231 is a wasteful number, since it uses less digits than its factorization.

12131020123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929490633.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12131020123231 its reverse (13232102013121), we get a palindrome (25363122136352).

The spelling of 12131020123231 in words is "twelve trillion, one hundred thirty-one billion, twenty million, one hundred twenty-three thousand, two hundred thirty-one".