11117911000 has 64 divisors (see below), whose sum is σ = 29732489280. Its totient is φ = 3811852800.

The previous prime is 11117910961. The next prime is 11117911019. The reversal of 11117911000 is 11971111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787137 + ... + 801136.

It is an arithmetic number, because the mean of its divisors is an integer number (464570145).

Almost surely, 2^11117911000 is an apocalyptic number.

11117911000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11117911000 is an abundant number, since it is smaller than the sum of its proper divisors (18614578280).

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

11117911000 is a wasteful number, since it uses less digits than its factorization.

11117911000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588301 (or 1588287 counting only the distinct ones).

The product of its (nonzero) digits is 63, while the sum is 22.

The spelling of 11117911000 in words is "eleven billion, one hundred seventeen million, nine hundred eleven thousand".