11173930087 has 24 divisors (see below), whose sum is σ = 11621740032. Its totient is φ = 10740366000.

The previous prime is 11173930063. The next prime is 11173930091. The reversal of 11173930087 is 78003937111.

It is not a de Polignac number, because 11173930087 - 2¹⁹ = 11173405799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11173930007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66909678 + ... + 66909844.

It is an arithmetic number, because the mean of its divisors is an integer number (484239168).

Almost surely, 2^11173930087 is an apocalyptic number.

11173930087 is a deficient number, since it is larger than the sum of its proper divisors (447809945).

11173930087 is an equidigital number, since it uses as much as digits as its factorization.

11173930087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 40.

The spelling of 11173930087 in words is "eleven billion, one hundred seventy-three million, nine hundred thirty thousand, eighty-seven".