523456163023 has 4 divisors (see below), whose sum is σ = 523457791560. Its totient is φ = 523454534488.

The previous prime is 523456163003. The next prime is 523456163081. The reversal of 523456163023 is 320361654325.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 523456163023 - 2²⁵ = 523422608591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523456163003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153265 + ... + 1034602.

It is an arithmetic number, because the mean of its divisors is an integer number (130864447890).

Almost surely, 2^523456163023 is an apocalyptic number.

523456163023 is a deficient number, since it is larger than the sum of its proper divisors (1628537).

523456163023 is a wasteful number, since it uses less digits than its factorization.

523456163023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628536.

The product of its (nonzero) digits is 388800, while the sum is 40.

The spelling of 523456163023 in words is "five hundred twenty-three billion, four hundred fifty-six million, one hundred sixty-three thousand, twenty-three".