442423111023 has 32 divisors (see below), whose sum is σ = 684565804800. Its totient is φ = 282113095968.

The previous prime is 442423111021. The next prime is 442423111069. The reversal of 442423111023 is 320111324244.

442423111023 is a `hidden beast` number, since 4 + 4 + 242 + 311 + 102 + 3 = 666.

It is not a de Polignac number, because 442423111023 - 2¹ = 442423111021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442423111021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3694161 + ... + 3812042.

It is an arithmetic number, because the mean of its divisors is an integer number (21392681400).

Almost surely, 2^442423111023 is an apocalyptic number.

442423111023 is a deficient number, since it is larger than the sum of its proper divisors (242142693777).

442423111023 is a wasteful number, since it uses less digits than its factorization.

442423111023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7506308 (or 7506302 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 442423111023 its reverse (320111324244), we get a palindrome (762534435267).

The spelling of 442423111023 in words is "four hundred forty-two billion, four hundred twenty-three million, one hundred eleven thousand, twenty-three".