2312131113231 has 24 divisors (see below), whose sum is σ = 3283403372544. Its totient is φ = 1446960869760.

The previous prime is 2312131113209. The next prime is 2312131113241. The reversal of 2312131113231 is 1323111312132.

It is not a de Polignac number, because 2312131113231 - 2¹¹ = 2312131111183 is a prime.

It is a super-2 number, since 2×2312131113231² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312131113241) 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 23 ways as a sum of consecutive naturals, for example, 3149425 + ... + 3813546.

It is an arithmetic number, because the mean of its divisors is an integer number (136808473856).

Almost surely, 2^{2312131113231} is an apocalyptic number.

2312131113231 is a deficient number, since it is larger than the sum of its proper divisors (971272259313).

2312131113231 is a wasteful number, since it uses less digits than its factorization.

2312131113231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6963391 (or 6963374 counting only the distinct ones).

The product of its digits is 648, while the sum is 24.

Adding to 2312131113231 its reverse (1323111312132), we get a palindrome (3635242425363).

The spelling of 2312131113231 in words is "two trillion, three hundred twelve billion, one hundred thirty-one million, one hundred thirteen thousand, two hundred thirty-one".