111083817912 has 32 divisors (see below), whose sum is σ = 279025716480. Its totient is φ = 36852449760.

The previous prime is 111083817857. The next prime is 111083817937. The reversal of 111083817912 is 219718380111.

It is a super-2 number, since 2×111083817912² (a number of 23 digits) contains 22 as substring.

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, 10962928 + ... + 10973055.

It is an arithmetic number, because the mean of its divisors is an integer number (8719553640).

Almost surely, 2^111083817912 is an apocalyptic number.

111083817912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111083817912 is an abundant number, since it is smaller than the sum of its proper divisors (167941898568).

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

111083817912 is a wasteful number, since it uses less digits than its factorization.

111083817912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21936203 (or 21936199 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 42.

The spelling of 111083817912 in words is "one hundred eleven billion, eighty-three million, eight hundred seventeen thousand, nine hundred twelve".