111450123 has 6 divisors (see below), whose sum is σ = 160983524. Its totient is φ = 74300076.

The previous prime is 111450107. The next prime is 111450137. The reversal of 111450123 is 321054111.

It is not a de Polignac number, because 111450123 - 2⁴ = 111450107 is a prime.

It is a super-2 number, since 2×111450123² = 24842259833430258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111450096 and 111450105.

It is not an unprimeable number, because it can be changed into a prime (111450173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6191665 + ... + 6191682.

Almost surely, 2^111450123 is an apocalyptic number.

111450123 is a deficient number, since it is larger than the sum of its proper divisors (49533401).

111450123 is a wasteful number, since it uses less digits than its factorization.

111450123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12383353 (or 12383350 counting only the distinct ones).

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

The square root of 111450123 is about 10556.9940323939. The cubic root of 111450123 is about 481.2383000922.

The spelling of 111450123 in words is "one hundred eleven million, four hundred fifty thousand, one hundred twenty-three".