111280023 has 12 divisors (see below), whose sum is σ = 160869280. Its totient is φ = 74126016.

The previous prime is 111279967. The next prime is 111280033. The reversal of 111280023 is 320082111.

It is not a de Polignac number, because 111280023 - 2⁸ = 111279767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111279978 and 111280005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111280033) 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, 8463 + ... + 17151.

Almost surely, 2^111280023 is an apocalyptic number.

111280023 is a deficient number, since it is larger than the sum of its proper divisors (49589257).

111280023 is a wasteful number, since it uses less digits than its factorization.

111280023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10118 (or 10115 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 111280023 is about 10548.9346855500. The cubic root of 111280023 is about 480.9933465250.

The spelling of 111280023 in words is "one hundred eleven million, two hundred eighty thousand, twenty-three".