23500563603431 has 2 divisors, whose sum is σ = 23500563603432. Its totient is φ = 23500563603430.

The previous prime is 23500563603421. The next prime is 23500563603463. The reversal of 23500563603431 is 13430636500532.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23500563603431 - 2²² = 23500559409127 is a prime.

It is a super-2 number, since 2×23500563603431² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23500563603421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11750281801715 + 11750281801716.

It is an arithmetic number, because the mean of its divisors is an integer number (11750281801716).

Almost surely, 2^{23500563603431} is an apocalyptic number.

23500563603431 is a deficient number, since it is larger than the sum of its proper divisors (1).

23500563603431 is an equidigital number, since it uses as much as digits as its factorization.

23500563603431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 583200, while the sum is 41.

The spelling of 23500563603431 in words is "twenty-three trillion, five hundred billion, five hundred sixty-three million, six hundred three thousand, four hundred thirty-one".