13251320002 has 16 divisors (see below), whose sum is σ = 19925205624. Its totient is φ = 6609600000.

The previous prime is 13251319973. The next prime is 13251320003. The reversal of 13251320002 is 20002315231.

It can be written as a sum of positive squares in 4 ways, for example, as 10720324521 + 2530995481 = 103539^2 + 50309^2 .

It is not an unprimeable number, because it can be changed into a prime (13251320003) 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, 3310002 + ... + 3314002.

Almost surely, 2^13251320002 is an apocalyptic number.

13251320002 is a deficient number, since it is larger than the sum of its proper divisors (6673885622).

13251320002 is a wasteful number, since it uses less digits than its factorization.

13251320002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7605.

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 13251320002 its reverse (20002315231), we get a palindrome (33253635233).

The spelling of 13251320002 in words is "thirteen billion, two hundred fifty-one million, three hundred twenty thousand, two".