111031023312 has 60 divisors (see below), whose sum is σ = 338981083584. Its totient is φ = 33645764160.

The previous prime is 111031023293. The next prime is 111031023409. The reversal of 111031023312 is 213320130111.

111031023312 is a `hidden beast` number, since 1 + 110 + 310 + 233 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35046088 + ... + 35049255.

Almost surely, 2^111031023312 is an apocalyptic number.

111031023312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111031023312 is an abundant number, since it is smaller than the sum of its proper divisors (227950060272).

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

111031023312 is a wasteful number, since it uses less digits than its factorization.

111031023312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70095368 (or 70095359 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 111031023312 its reverse (213320130111), we get a palindrome (324351153423).

The spelling of 111031023312 in words is "one hundred eleven billion, thirty-one million, twenty-three thousand, three hundred twelve".