2131301231 has 4 divisors (see below), whose sum is σ = 2243475000. Its totient is φ = 2019127464.

The previous prime is 2131301213. The next prime is 2131301239. The reversal of 2131301231 is 1321031312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2131301231 - 2⁶ = 2131301167 is a prime.

It is a super-2 number, since 2×2131301231² = 9084889874524230722, which 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 (2131301239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56086856 + ... + 56086893.

It is an arithmetic number, because the mean of its divisors is an integer number (560868750).

Almost surely, 2^2131301231 is an apocalyptic number.

2131301231 is a deficient number, since it is larger than the sum of its proper divisors (112173769).

2131301231 is a wasteful number, since it uses less digits than its factorization.

2131301231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112173768.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2131301231 is about 46166.0181410526. The cubic root of 2131301231 is about 1286.9103051994.

Adding to 2131301231 its reverse (1321031312), we get a palindrome (3452332543).

The spelling of 2131301231 in words is "two billion, one hundred thirty-one million, three hundred one thousand, two hundred thirty-one".