13112463515 has 4 divisors (see below), whose sum is σ = 15734956224. Its totient is φ = 10489970808.

The previous prime is 13112463499. The next prime is 13112463541. The reversal of 13112463515 is 51536421131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51536421131 = 13 ⋅3964340087.

It is a cyclic number.

It is not a de Polignac number, because 13112463515 - 2⁴ = 13112463499 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1311246347 + ... + 1311246356.

It is an arithmetic number, because the mean of its divisors is an integer number (3933739056).

Almost surely, 2^13112463515 is an apocalyptic number.

13112463515 is a deficient number, since it is larger than the sum of its proper divisors (2622492709).

13112463515 is an equidigital number, since it uses as much as digits as its factorization.

13112463515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622492708.

The product of its digits is 10800, while the sum is 32.

Adding to 13112463515 its reverse (51536421131), we get a palindrome (64648884646).

The spelling of 13112463515 in words is "thirteen billion, one hundred twelve million, four hundred sixty-three thousand, five hundred fifteen".