13040202144 has 48 divisors (see below), whose sum is σ = 34236488160. Its totient is φ = 4345977600.

The previous prime is 13040202137. The next prime is 13040202179. The reversal of 13040202144 is 44120204031.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 13040202144.

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, 938802 + ... + 952590.

It is an arithmetic number, because the mean of its divisors is an integer number (713260170).

Almost surely, 2^13040202144 is an apocalyptic number.

It is an amenable number.

13040202144 is an abundant number, since it is smaller than the sum of its proper divisors (21196286016).

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

13040202144 is a wasteful number, since it uses less digits than its factorization.

13040202144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23653 (or 23645 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 13040202144 its reverse (44120204031), we get a palindrome (57160406175).

The spelling of 13040202144 in words is "thirteen billion, forty million, two hundred two thousand, one hundred forty-four".