2131333031 has 2 divisors, whose sum is σ = 2131333032. Its totient is φ = 2131333030.

The previous prime is 2131333003. The next prime is 2131333063. The reversal of 2131333031 is 1303331312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2131333031 - 2³⁰ = 1057591207 is a prime.

It is a super-2 number, since 2×2131333031² = 9085160978063293922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2131332994 and 2131333012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131333931) 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, 1065666515 + 1065666516.

It is an arithmetic number, because the mean of its divisors is an integer number (1065666516).

Almost surely, 2^2131333031 is an apocalyptic number.

2131333031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131333031 is an equidigital number, since it uses as much as digits as its factorization.

2131333031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 2131333031 is about 46166.3625489382. The cubic root of 2131333031 is about 1286.9167055998.

Adding to 2131333031 its reverse (1303331312), we get a palindrome (3434664343).

The spelling of 2131333031 in words is "two billion, one hundred thirty-one million, three hundred thirty-three thousand, thirty-one".