2131302031 has 2 divisors, whose sum is σ = 2131302032. Its totient is φ = 2131302030.

The previous prime is 2131302007. The next prime is 2131302037. The reversal of 2131302031 is 1302031312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2131302031 - 2⁹ = 2131301519 is a prime.

It is a super-2 number, since 2×2131302031² = 9084896694689449922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2131301996 and 2131302014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131302037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065651015 + 1065651016.

It is an arithmetic number, because the mean of its divisors is an integer number (1065651016).

Almost surely, 2^2131302031 is an apocalyptic number.

2131302031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131302031 is an equidigital number, since it uses as much as digits as its factorization.

2131302031 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 16.

The square root of 2131302031 is about 46166.0268054335. The cubic root of 2131302031 is about 1286.9104662165.

Adding to 2131302031 its reverse (1302031312), we get a palindrome (3433333343).

The spelling of 2131302031 in words is "two billion, one hundred thirty-one million, three hundred two thousand, thirty-one".