13023615535 has 32 divisors (see below), whose sum is σ = 18250427520. Its totient is φ = 8736718848.

The previous prime is 13023615529. The next prime is 13023615559. The reversal of 13023615535 is 53551632031.

It is a cyclic number.

It is not a de Polignac number, because 13023615535 - 2²³ = 13015226927 is a prime.

It is a super-2 number, since 2×13023615535² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13023615535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 644871 + ... + 664759.

It is an arithmetic number, because the mean of its divisors is an integer number (570325860).

Almost surely, 2^13023615535 is an apocalyptic number.

13023615535 is a deficient number, since it is larger than the sum of its proper divisors (5226811985).

13023615535 is a wasteful number, since it uses less digits than its factorization.

13023615535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20307.

The product of its (nonzero) digits is 40500, while the sum is 34.

The spelling of 13023615535 in words is "thirteen billion, twenty-three million, six hundred fifteen thousand, five hundred thirty-five".