31270944163 has 2 divisors, whose sum is σ = 31270944164. Its totient is φ = 31270944162.

The previous prime is 31270944157. The next prime is 31270944181. The reversal of 31270944163 is 36144907213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31270944163 - 2²¹ = 31268847011 is a prime.

It is not a weakly prime, because it can be changed into another prime (31270944113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15635472081 + 15635472082.

It is an arithmetic number, because the mean of its divisors is an integer number (15635472082).

Almost surely, 2^31270944163 is an apocalyptic number.

31270944163 is a deficient number, since it is larger than the sum of its proper divisors (1).

31270944163 is an equidigital number, since it uses as much as digits as its factorization.

31270944163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 31270944163 in words is "thirty-one billion, two hundred seventy million, nine hundred forty-four thousand, one hundred sixty-three".