111784611312 has 60 divisors (see below), whose sum is σ = 341281810584. Its totient is φ = 33874124160.

The previous prime is 111784611299. The next prime is 111784611319. The reversal of 111784611312 is 213116487111.

111784611312 is a `hidden beast` number, since 1 + 1 + 1 + 7 + 8 + 4 + 611 + 31 + 2 = 666.

It is a super-2 number, since 2×111784611312² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111784611319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35283963 + ... + 35287130.

Almost surely, 2^111784611312 is an apocalyptic number.

111784611312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111784611312 is an abundant number, since it is smaller than the sum of its proper divisors (229497199272).

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

111784611312 is a wasteful number, since it uses less digits than its factorization.

111784611312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70571118 (or 70571109 counting only the distinct ones).

The product of its digits is 8064, while the sum is 36.

The spelling of 111784611312 in words is "one hundred eleven billion, seven hundred eighty-four million, six hundred eleven thousand, three hundred twelve".