31032233131 has 2 divisors, whose sum is σ = 31032233132. Its totient is φ = 31032233130.

The previous prime is 31032233117. The next prime is 31032233147. The reversal of 31032233131 is 13133223013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31032233131 - 2¹⁵ = 31032200363 is a prime.

It is a super-2 number, since 2×31032233131² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31032233231) 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, 15516116565 + 15516116566.

It is an arithmetic number, because the mean of its divisors is an integer number (15516116566).

Almost surely, 2^31032233131 is an apocalyptic number.

31032233131 is a deficient number, since it is larger than the sum of its proper divisors (1).

31032233131 is an equidigital number, since it uses as much as digits as its factorization.

31032233131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31032233131 its reverse (13133223013), we get a palindrome (44165456144).

The spelling of 31032233131 in words is "thirty-one billion, thirty-two million, two hundred thirty-three thousand, one hundred thirty-one".