13215023507 has 16 divisors (see below), whose sum is σ = 15948940800. Its totient is φ = 10696458240.

The previous prime is 13215023483. The next prime is 13215023557. The reversal of 13215023507 is 70532051231.

It is a cyclic number.

It is not a de Polignac number, because 13215023507 - 2⁶ = 13215023443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13215023507.

It is not an unprimeable number, because it can be changed into a prime (13215023557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118382 + ... + 201107.

It is an arithmetic number, because the mean of its divisors is an integer number (996808800).

Almost surely, 2^13215023507 is an apocalyptic number.

13215023507 is a deficient number, since it is larger than the sum of its proper divisors (2733917293).

13215023507 is a wasteful number, since it uses less digits than its factorization.

13215023507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319826.

The product of its (nonzero) digits is 6300, while the sum is 29.

Adding to 13215023507 its reverse (70532051231), we get a palindrome (83747074738).

The spelling of 13215023507 in words is "thirteen billion, two hundred fifteen million, twenty-three thousand, five hundred seven".