13023123515 has 8 divisors (see below), whose sum is σ = 15695993040. Its totient is φ = 10373002272.

The previous prime is 13023123499. The next prime is 13023123521. The reversal of 13023123515 is 51532132031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13023123515 - 2⁴ = 13023123499 is a prime.

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, 5685809 + ... + 5688098.

It is an arithmetic number, because the mean of its divisors is an integer number (1961999130).

Almost surely, 2^13023123515 is an apocalyptic number.

13023123515 is a deficient number, since it is larger than the sum of its proper divisors (2672869525).

13023123515 is a wasteful number, since it uses less digits than its factorization.

13023123515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11374141.

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 13023123515 its reverse (51532132031), we get a palindrome (64555255546).

The spelling of 13023123515 in words is "thirteen billion, twenty-three million, one hundred twenty-three thousand, five hundred fifteen".