111057423 has 4 divisors (see below), whose sum is σ = 148076568. Its totient is φ = 74038280.

The previous prime is 111057383. The next prime is 111057431. The reversal of 111057423 is 324750111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111057423 - 2¹³ = 111049231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111057393 and 111057402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111057473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18509568 + ... + 18509573.

It is an arithmetic number, because the mean of its divisors is an integer number (37019142).

Almost surely, 2^111057423 is an apocalyptic number.

111057423 is a deficient number, since it is larger than the sum of its proper divisors (37019145).

111057423 is an equidigital number, since it uses as much as digits as its factorization.

111057423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37019144.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 111057423 is about 10538.3785754736. The cubic root of 111057423 is about 480.6724126391.

It can be divided in two parts, 11105 and 7423, that added together give a triangular number (18528 = T₁₉₂).

The spelling of 111057423 in words is "one hundred eleven million, fifty-seven thousand, four hundred twenty-three".