111112021023 has 8 divisors (see below), whose sum is σ = 148156466736. Its totient is φ = 74071128000.

The previous prime is 111112021019. The next prime is 111112021037. The reversal of 111112021023 is 320120211111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111112021023 - 2² = 111112021019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111112020993 and 111112021011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111112021073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 814318 + ... + 940923.

It is an arithmetic number, because the mean of its divisors is an integer number (18519558342).

Almost surely, 2^111112021023 is an apocalyptic number.

111112021023 is a deficient number, since it is larger than the sum of its proper divisors (37044445713).

111112021023 is a wasteful number, since it uses less digits than its factorization.

111112021023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776345.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 111112021023 its reverse (320120211111), we get a palindrome (431232232134).

The spelling of 111112021023 in words is "one hundred eleven billion, one hundred twelve million, twenty-one thousand, twenty-three".