111123998 has 8 divisors (see below), whose sum is σ = 172433880. Its totient is φ = 53646040.

The previous prime is 111123977. The next prime is 111124021. The reversal of 111123998 is 899321111.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 957908 + ... + 958023.

It is an arithmetic number, because the mean of its divisors is an integer number (21554235).

Almost surely, 2^111123998 is an apocalyptic number.

111123998 is a deficient number, since it is larger than the sum of its proper divisors (61309882).

111123998 is a wasteful number, since it uses less digits than its factorization.

111123998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915962.

The product of its digits is 3888, while the sum is 35.

The square root of 111123998 is about 10541.5367949839. The cubic root of 111123998 is about 480.7684421606.

The spelling of 111123998 in words is "one hundred eleven million, one hundred twenty-three thousand, nine hundred ninety-eight".