31996702063 has 2 divisors, whose sum is σ = 31996702064. Its totient is φ = 31996702062.

The previous prime is 31996702043. The next prime is 31996702091. The reversal of 31996702063 is 36020769913.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31996702063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31996702043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15998351031 + 15998351032.

It is an arithmetic number, because the mean of its divisors is an integer number (15998351032).

Almost surely, 2^31996702063 is an apocalyptic number.

31996702063 is a deficient number, since it is larger than the sum of its proper divisors (1).

31996702063 is an equidigital number, since it uses as much as digits as its factorization.

31996702063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 46.

The spelling of 31996702063 in words is "thirty-one billion, nine hundred ninety-six million, seven hundred two thousand, sixty-three".