11187402239 has 16 divisors (see below), whose sum is σ = 13005316800. Its totient is φ = 9537217536.

The previous prime is 11187402221. The next prime is 11187402241. The reversal of 11187402239 is 93220478111.

It is a happy number.

It is not a de Polignac number, because 11187402239 - 2²⁴ = 11170625023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11187402269) 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, 636434 + ... + 653775.

It is an arithmetic number, because the mean of its divisors is an integer number (812832300).

Almost surely, 2^11187402239 is an apocalyptic number.

11187402239 is a deficient number, since it is larger than the sum of its proper divisors (1817914561).

11187402239 is a wasteful number, since it uses less digits than its factorization.

11187402239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290274.

The product of its (nonzero) digits is 24192, while the sum is 38.

The spelling of 11187402239 in words is "eleven billion, one hundred eighty-seven million, four hundred two thousand, two hundred thirty-nine".