111500423 has 2 divisors, whose sum is σ = 111500424. Its totient is φ = 111500422.

The previous prime is 111500413. The next prime is 111500429. The reversal of 111500423 is 324005111.

It is a strong prime.

It is an emirp because it is prime and its reverse (324005111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111500423 - 2²⁴ = 94723207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111500429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55750211 + 55750212.

It is an arithmetic number, because the mean of its divisors is an integer number (55750212).

Almost surely, 2^111500423 is an apocalyptic number.

111500423 is a deficient number, since it is larger than the sum of its proper divisors (1).

111500423 is an equidigital number, since it uses as much as digits as its factorization.

111500423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 111500423 is about 10559.3760705830. The cubic root of 111500423 is about 481.3106871689.

Adding to 111500423 its reverse (324005111), we get a palindrome (435505534).

The spelling of 111500423 in words is "one hundred eleven million, five hundred thousand, four hundred twenty-three".