13213012304 has 20 divisors (see below), whose sum is σ = 25853681940. Its totient is φ = 6541094400.

The previous prime is 13213012303. The next prime is 13213012363. The reversal of 13213012304 is 40321031231.

It can be written as a sum of positive squares in 2 ways, for example, as 5565160000 + 7647852304 = 74600^2 + 87452^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13213012303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4086569 + ... + 4089800.

It is an arithmetic number, because the mean of its divisors is an integer number (1292684097).

Almost surely, 2^13213012304 is an apocalyptic number.

It is an amenable number.

13213012304 is a deficient number, since it is larger than the sum of its proper divisors (12640669636).

13213012304 is a wasteful number, since it uses less digits than its factorization.

13213012304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8176478 (or 8176472 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13213012304 its reverse (40321031231), we get a palindrome (53534043535).

The spelling of 13213012304 in words is "thirteen billion, two hundred thirteen million, twelve thousand, three hundred four".