111213555894 has 36 divisors (see below), whose sum is σ = 280303556364. Its totient is φ = 31775301432.

The previous prime is 111213555821. The next prime is 111213555919. The reversal of 111213555894 is 498555312111.

111213555894 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 1 + 3 + 5 + 558 + 94 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 63045352 + ... + 63047115.

It is an arithmetic number, because the mean of its divisors is an integer number (7786209899).

Almost surely, 2^111213555894 is an apocalyptic number.

111213555894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

111213555894 is an abundant number, since it is smaller than the sum of its proper divisors (169090000470).

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

111213555894 is a wasteful number, since it uses less digits than its factorization.

111213555894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126092489 (or 126092479 counting only the distinct ones).

The product of its digits is 216000, while the sum is 45.

The spelling of 111213555894 in words is "one hundred eleven billion, two hundred thirteen million, five hundred fifty-five thousand, eight hundred ninety-four".