111390423 has 8 divisors (see below), whose sum is σ = 151680768. Its totient is φ = 72680184.

The previous prime is 111390413. The next prime is 111390431. The reversal of 111390423 is 324093111.

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

It is not a de Polignac number, because 111390423 - 2⁹ = 111389911 is a prime.

It is a super-2 number, since 2×111390423² = 24815652672237858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111390393 and 111390402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111390413) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 394861 + ... + 395142.

It is an arithmetic number, because the mean of its divisors is an integer number (18960096).

Almost surely, 2^111390423 is an apocalyptic number.

111390423 is a deficient number, since it is larger than the sum of its proper divisors (40290345).

111390423 is an equidigital number, since it uses as much as digits as its factorization.

111390423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790053.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 111390423 is about 10554.1661442295. The cubic root of 111390423 is about 481.1523571396.

The spelling of 111390423 in words is "one hundred eleven million, three hundred ninety thousand, four hundred twenty-three".