111563023 has 16 divisors (see below), whose sum is σ = 132120576. Its totient is φ = 92867040.

The previous prime is 111563021. The next prime is 111563047. The reversal of 111563023 is 320365111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111563023 - 2¹ = 111563021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111562985 and 111563003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111563021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15090 + ... + 21232.

It is an arithmetic number, because the mean of its divisors is an integer number (8257536).

Almost surely, 2^111563023 is an apocalyptic number.

111563023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

111563023 is a deficient number, since it is larger than the sum of its proper divisors (20557553).

111563023 is a wasteful number, since it uses less digits than its factorization.

111563023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6294.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 111563023 is about 10562.3398449397. The cubic root of 111563023 is about 481.4007448604.

The spelling of 111563023 in words is "one hundred eleven million, five hundred sixty-three thousand, twenty-three".