111423455 has 48 divisors (see below), whose sum is σ = 163736832. Its totient is φ = 72230400.

The previous prime is 111423421. The next prime is 111423463. The reversal of 111423455 is 554324111.

It is not a de Polignac number, because 111423455 - 2¹⁰ = 111422431 is a prime.

It is a Duffinian number.

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 47 ways as a sum of consecutive naturals, for example, 243587 + ... + 244043.

It is an arithmetic number, because the mean of its divisors is an integer number (3411184).

Almost surely, 2^111423455 is an apocalyptic number.

111423455 is a deficient number, since it is larger than the sum of its proper divisors (52313377).

111423455 is a wasteful number, since it uses less digits than its factorization.

111423455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528 (or 517 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 111423455 is about 10555.7309079002. The cubic root of 111423455 is about 481.1999131547.

Adding to 111423455 its reverse (554324111), we get a palindrome (665747566).

The spelling of 111423455 in words is "one hundred eleven million, four hundred twenty-three thousand, four hundred fifty-five".