13023404544 has 160 divisors (see below), whose sum is σ = 35951984640. Its totient is φ = 4184985600.

The previous prime is 13023404519. The next prime is 13023404561. The reversal of 13023404544 is 44540432031.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22807779 + ... + 22808349.

It is an arithmetic number, because the mean of its divisors is an integer number (224699904).

Almost surely, 2^13023404544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13023404544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17975992320).

13023404544 is an abundant number, since it is smaller than the sum of its proper divisors (22928580096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13023404544 is an equidigital number, since it uses as much as digits as its factorization.

13023404544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102 (or 1086 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 13023404544 its reverse (44540432031), we get a palindrome (57563836575).

The spelling of 13023404544 in words is "thirteen billion, twenty-three million, four hundred four thousand, five hundred forty-four".