31302309953 has 2 divisors, whose sum is σ = 31302309954. Its totient is φ = 31302309952.

The previous prime is 31302309877. The next prime is 31302310021. The reversal of 31302309953 is 35990320313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29862259249 + 1440050704 = 172807^2 + 37948^2 .

It is a cyclic number.

It is not a de Polignac number, because 31302309953 - 2⁸ = 31302309697 is a prime.

It is not a weakly prime, because it can be changed into another prime (31302303953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15651154976 + 15651154977.

It is an arithmetic number, because the mean of its divisors is an integer number (15651154977).

Almost surely, 2^31302309953 is an apocalyptic number.

It is an amenable number.

31302309953 is a deficient number, since it is larger than the sum of its proper divisors (1).

31302309953 is an equidigital number, since it uses as much as digits as its factorization.

31302309953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65610, while the sum is 38.

The spelling of 31302309953 in words is "thirty-one billion, three hundred two million, three hundred nine thousand, nine hundred fifty-three".