2131013231 has 2 divisors, whose sum is σ = 2131013232. Its totient is φ = 2131013230.

The previous prime is 2131013219. The next prime is 2131013233. The reversal of 2131013231 is 1323101312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2131013231 - 2³⁰ = 1057271407 is a prime.

It is a super-2 number, since 2×2131013231² = 9082434781394118722, which contains 22 as substring.

Together with 2131013233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131013233) 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 as a sum of consecutive naturals, namely, 1065506615 + 1065506616.

It is an arithmetic number, because the mean of its divisors is an integer number (1065506616).

Almost surely, 2^2131013231 is an apocalyptic number.

2131013231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131013231 is an equidigital number, since it uses as much as digits as its factorization.

2131013231 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2131013231 is about 46162.8988582823. The cubic root of 2131013231 is about 1286.8523364089.

Adding to 2131013231 its reverse (1323101312), we get a palindrome (3454114543).

The spelling of 2131013231 in words is "two billion, one hundred thirty-one million, thirteen thousand, two hundred thirty-one".