111456623 has 2 divisors, whose sum is σ = 111456624. Its totient is φ = 111456622.

The previous prime is 111456571. The next prime is 111456659. The reversal of 111456623 is 326654111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111456623 - 2¹⁴ = 111440239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111456673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55728311 + 55728312.

It is an arithmetic number, because the mean of its divisors is an integer number (55728312).

Almost surely, 2^111456623 is an apocalyptic number.

111456623 is a deficient number, since it is larger than the sum of its proper divisors (1).

111456623 is an equidigital number, since it uses as much as digits as its factorization.

111456623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 29.

The square root of 111456623 is about 10557.3018806890. The cubic root of 111456623 is about 481.2476555123.

The spelling of 111456623 in words is "one hundred eleven million, four hundred fifty-six thousand, six hundred twenty-three".