2131000331 has 2 divisors, whose sum is σ = 2131000332. Its totient is φ = 2131000330.

The previous prime is 2131000307. The next prime is 2131000373. The reversal of 2131000331 is 1330001312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2131000331 - 2¹⁰ = 2130999307 is a prime.

It is a super-2 number, since 2×2131000331² = 9082324821444219122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2131000381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065500165 + 1065500166.

It is an arithmetic number, because the mean of its divisors is an integer number (1065500166).

Almost surely, 2^2131000331 is an apocalyptic number.

2131000331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131000331 is an equidigital number, since it uses as much as digits as its factorization.

2131000331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 2131000331 is about 46162.7591354763. The cubic root of 2131000331 is about 1286.8497397680.

Adding to 2131000331 its reverse (1330001312), we get a palindrome (3461001643).

The spelling of 2131000331 in words is "two billion, one hundred thirty-one million, three hundred thirty-one", and thus it is an aban number.