113423999 has 16 divisors (see below), whose sum is σ = 125789664. Its totient is φ = 101606400.

The previous prime is 113423993. The next prime is 113424023. The reversal of 113423999 is 999324311.

It is a cyclic number.

It is not a de Polignac number, because 113423999 - 2⁸ = 113423743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113423993) 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 15 ways as a sum of consecutive naturals, for example, 128012 + ... + 128894.

It is an arithmetic number, because the mean of its divisors is an integer number (7861854).

Almost surely, 2^113423999 is an apocalyptic number.

113423999 is a deficient number, since it is larger than the sum of its proper divisors (12365665).

113423999 is a wasteful number, since it uses less digits than its factorization.

113423999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178.

The product of its digits is 52488, while the sum is 41.

The square root of 113423999 is about 10650.0703753543. The cubic root of 113423999 is about 484.0627366141.

The spelling of 113423999 in words is "one hundred thirteen million, four hundred twenty-three thousand, nine hundred ninety-nine".