111451023 has 6 divisors (see below), whose sum is σ = 160984824. Its totient is φ = 74300676.

The previous prime is 111451019. The next prime is 111451027. The reversal of 111451023 is 320154111.

It is an interprime number because it is at equal distance from previous prime (111451019) and next prime (111451027).

It is not a de Polignac number, because 111451023 - 2² = 111451019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111450987 and 111451005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111451027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6191715 + ... + 6191732.

It is an arithmetic number, because the mean of its divisors is an integer number (26830804).

Almost surely, 2^111451023 is an apocalyptic number.

111451023 is a deficient number, since it is larger than the sum of its proper divisors (49533801).

111451023 is a wasteful number, since it uses less digits than its factorization.

111451023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12383453 (or 12383450 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 111451023 is about 10557.0366580779. The cubic root of 111451023 is about 481.2395954798.

The spelling of 111451023 in words is "one hundred eleven million, four hundred fifty-one thousand, twenty-three".