111023123312 has 20 divisors (see below), whose sum is σ = 215112957336. Its totient is φ = 55510102080.

The previous prime is 111023123297. The next prime is 111023123333. The reversal of 111023123312 is 213321320111.

It is a happy number.

It is a super-2 number, since 2×111023123312² (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 3 ways as a sum of consecutive naturals, for example, 800387 + ... + 928797.

Almost surely, 2^111023123312 is an apocalyptic number.

It is an amenable number.

111023123312 is a deficient number, since it is larger than the sum of its proper divisors (104089834024).

111023123312 is a wasteful number, since it uses less digits than its factorization.

111023123312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182456 (or 182450 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 111023123312 its reverse (213321320111), we get a palindrome (324344443423).

The spelling of 111023123312 in words is "one hundred eleven billion, twenty-three million, one hundred twenty-three thousand, three hundred twelve".