11157317112 has 32 divisors (see below), whose sum is σ = 29106046080. Its totient is φ = 3557405280.

The previous prime is 11157317099. The next prime is 11157317159. The reversal of 11157317112 is 21171375111.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 11157317112.

It is a congruent number.

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, 10105714 + ... + 10106817.

It is an arithmetic number, because the mean of its divisors is an integer number (909563940).

Almost surely, 2^11157317112 is an apocalyptic number.

11157317112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11157317112 is an abundant number, since it is smaller than the sum of its proper divisors (17948728968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11157317112 is a wasteful number, since it uses less digits than its factorization.

11157317112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20212563 (or 20212559 counting only the distinct ones).

The product of its digits is 1470, while the sum is 30.

The spelling of 11157317112 in words is "eleven billion, one hundred fifty-seven million, three hundred seventeen thousand, one hundred twelve".