13115504403 has 12 divisors (see below), whose sum is σ = 20059006968. Its totient is φ = 8229336000.

The previous prime is 13115504393. The next prime is 13115504407. The reversal of 13115504403 is 30440551131.

It is a happy number.

13115504403 is a `hidden beast` number, since 1 + 3 + 115 + 504 + 40 + 3 = 666.

It is not a de Polignac number, because 13115504403 - 2¹³ = 13115496211 is a prime.

It is a super-2 number, since 2×13115504403² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13115504407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42860973 + ... + 42861278.

It is an arithmetic number, because the mean of its divisors is an integer number (1671583914).

Almost surely, 2^13115504403 is an apocalyptic number.

13115504403 is a deficient number, since it is larger than the sum of its proper divisors (6943502565).

13115504403 is a wasteful number, since it uses less digits than its factorization.

13115504403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85722274 (or 85722271 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The spelling of 13115504403 in words is "thirteen billion, one hundred fifteen million, five hundred four thousand, four hundred three".