12131233231231 has 8 divisors (see below), whose sum is σ = 12658729830624. Its totient is φ = 11603740938240.

The previous prime is 12131233231213. The next prime is 12131233231259. The reversal of 12131233231231 is 13213233213121.

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 12131233231231 - 2¹⁵ = 12131233198463 is a prime.

It is a super-2 number, since 2×12131233231231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12131233231231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131233231291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5547051 + ... + 7418371.

It is an arithmetic number, because the mean of its divisors is an integer number (1582341228828).

Almost surely, 2^{12131233231231} is an apocalyptic number.

12131233231231 is a deficient number, since it is larger than the sum of its proper divisors (527496599393).

12131233231231 is a wasteful number, since it uses less digits than its factorization.

12131233231231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153201.

The product of its digits is 3888, while the sum is 28.

Adding to 12131233231231 its reverse (13213233213121), we get a palindrome (25344466444352).

The spelling of 12131233231231 in words is "twelve trillion, one hundred thirty-one billion, two hundred thirty-three million, two hundred thirty-one thousand, two hundred thirty-one".