111423043220 has 48 divisors (see below), whose sum is σ = 258524275968. Its totient is φ = 40123691520.

The previous prime is 111423043213. The next prime is 111423043273. The reversal of 111423043220 is 22340324111.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7116416 + ... + 7132055.

It is an arithmetic number, because the mean of its divisors is an integer number (5385922416).

Almost surely, 2^111423043220 is an apocalyptic number.

111423043220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111423043220 is an abundant number, since it is smaller than the sum of its proper divisors (147101232748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111423043220 is a wasteful number, since it uses less digits than its factorization.

111423043220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14248520 (or 14248518 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 111423043220 its reverse (22340324111), we get a palindrome (133763367331).

The spelling of 111423043220 in words is "one hundred eleven billion, four hundred twenty-three million, forty-three thousand, two hundred twenty".