31639506023 has 2 divisors, whose sum is σ = 31639506024. Its totient is φ = 31639506022.

The previous prime is 31639505993. The next prime is 31639506131. The reversal of 31639506023 is 32060593613.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31639506023 - 2⁶ = 31639505959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31639506923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15819753011 + 15819753012.

It is an arithmetic number, because the mean of its divisors is an integer number (15819753012).

Almost surely, 2^31639506023 is an apocalyptic number.

31639506023 is a deficient number, since it is larger than the sum of its proper divisors (1).

31639506023 is an equidigital number, since it uses as much as digits as its factorization.

31639506023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 38.

The spelling of 31639506023 in words is "thirty-one billion, six hundred thirty-nine million, five hundred six thousand, twenty-three".