523535302121023 has 32 divisors (see below), whose sum is σ = 553896046310400. Its totient is φ = 493459142432256.

The previous prime is 523535302121017. The next prime is 523535302121077. The reversal of 523535302121023 is 320121203535325.

It is a happy number.

It is not a de Polignac number, because 523535302121023 - 2⁵ = 523535302120991 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 (523535302127023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27857985715 + ... + 27858004507.

It is an arithmetic number, because the mean of its divisors is an integer number (17309251447200).

Almost surely, 2^{523535302121023} is an apocalyptic number.

523535302121023 is a deficient number, since it is larger than the sum of its proper divisors (30360744189377).

523535302121023 is a wasteful number, since it uses less digits than its factorization.

523535302121023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24271.

The product of its (nonzero) digits is 162000, while the sum is 37.

Adding to 523535302121023 its reverse (320121203535325), we get a palindrome (843656505656348).

It can be divided in two parts, 523535302 and 121023, that added together give a palindrome (523656325).

The spelling of 523535302121023 in words is "five hundred twenty-three trillion, five hundred thirty-five billion, three hundred two million, one hundred twenty-one thousand, twenty-three".