31312232113003 has 2 divisors, whose sum is σ = 31312232113004. Its totient is φ = 31312232113002.

The previous prime is 31312232112977. The next prime is 31312232113009. The reversal of 31312232113003 is 30031123221313.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31312232113003 is a prime.

It is not a weakly prime, because it can be changed into another prime (31312232113009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656116056501 + 15656116056502.

It is an arithmetic number, because the mean of its divisors is an integer number (15656116056502).

Almost surely, 2^{31312232113003} is an apocalyptic number.

31312232113003 is a deficient number, since it is larger than the sum of its proper divisors (1).

31312232113003 is an equidigital number, since it uses as much as digits as its factorization.

31312232113003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31312232113003 its reverse (30031123221313), we get a palindrome (61343355334316).

The spelling of 31312232113003 in words is "thirty-one trillion, three hundred twelve billion, two hundred thirty-two million, one hundred thirteen thousand, three".