111442440123 has 12 divisors (see below), whose sum is σ = 183968472688. Its totient is φ = 63681394320.

The previous prime is 111442440091. The next prime is 111442440133. The reversal of 111442440123 is 321044244111.

111442440123 is a `hidden beast` number, since 1 + 114 + 424 + 4 + 0 + 123 = 666.

It is not a de Polignac number, because 111442440123 - 2⁵ = 111442440091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111442440133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 884463748 + ... + 884463873.

Almost surely, 2^111442440123 is an apocalyptic number.

111442440123 is a deficient number, since it is larger than the sum of its proper divisors (72526032565).

111442440123 is a wasteful number, since it uses less digits than its factorization.

111442440123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768927634 (or 1768927631 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 111442440123 its reverse (321044244111), we get a palindrome (432486684234).

The spelling of 111442440123 in words is "one hundred eleven billion, four hundred forty-two million, four hundred forty thousand, one hundred twenty-three".