13013033531 has 8 divisors (see below), whose sum is σ = 13130123520. Its totient is φ = 12896425152.

The previous prime is 13013033513. The next prime is 13013033549. The reversal of 13013033531 is 13533031031.

It is an interprime number because it is at equal distance from previous prime (13013033513) and next prime (13013033549).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13013033531 is a prime.

It is a super-2 number, since 2×13013033531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13013033497 and 13013033506.

It is not an unprimeable number, because it can be changed into a prime (13013039531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66011 + ... + 174308.

It is an arithmetic number, because the mean of its divisors is an integer number (1641265440).

Almost surely, 2^13013033531 is an apocalyptic number.

13013033531 is a deficient number, since it is larger than the sum of its proper divisors (117089989).

13013033531 is a wasteful number, since it uses less digits than its factorization.

13013033531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240805.

The product of its (nonzero) digits is 1215, while the sum is 23.

Adding to 13013033531 its reverse (13533031031), we get a palindrome (26546064562).

The spelling of 13013033531 in words is "thirteen billion, thirteen million, thirty-three thousand, five hundred thirty-one".