13002023244 has 24 divisors (see below), whose sum is σ = 34672062208. Its totient is φ = 3714863760.

The previous prime is 13002023239. The next prime is 13002023263. The reversal of 13002023244 is 44232020031.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 13002023244.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77392912 + ... + 77393079.

Almost surely, 2^13002023244 is an apocalyptic number.

13002023244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13002023244 is an abundant number, since it is smaller than the sum of its proper divisors (21670038964).

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

13002023244 is a wasteful number, since it uses less digits than its factorization.

13002023244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154786005 (or 154786003 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 13002023244 its reverse (44232020031), we get a palindrome (57234043275).

The spelling of 13002023244 in words is "thirteen billion, two million, twenty-three thousand, two hundred forty-four".