13213340432 has 40 divisors (see below), whose sum is σ = 25739899416. Its totient is φ = 6570868736.

The previous prime is 13213340431. The next prime is 13213340443. The reversal of 13213340432 is 23404331231.

It can be written as a sum of positive squares in 4 ways, for example, as 2350698256 + 10862642176 = 48484^2 + 104224^2 .

It is not an unprimeable number, because it can be changed into a prime (13213340431) 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, 3176498 + ... + 3180654.

Almost surely, 2^13213340432 is an apocalyptic number.

It is an amenable number.

13213340432 is a deficient number, since it is larger than the sum of its proper divisors (12526558984).

13213340432 is a wasteful number, since it uses less digits than its factorization.

13213340432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5195 (or 5189 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 13213340432 its reverse (23404331231), we get a palindrome (36617671663).

The spelling of 13213340432 in words is "thirteen billion, two hundred thirteen million, three hundred forty thousand, four hundred thirty-two".