442123103 has 4 divisors (see below), whose sum is σ = 465392760. Its totient is φ = 418853448.

The previous prime is 442123093. The next prime is 442123127. The reversal of 442123103 is 301321244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 442123103 - 2⁶ = 442123039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442123193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11634800 + ... + 11634837.

It is an arithmetic number, because the mean of its divisors is an integer number (116348190).

Almost surely, 2^442123103 is an apocalyptic number.

442123103 is a deficient number, since it is larger than the sum of its proper divisors (23269657).

442123103 is a wasteful number, since it uses less digits than its factorization.

442123103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23269656.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 442123103 is about 21026.7235440998. The cubic root of 442123103 is about 761.8118721628.

Adding to 442123103 its reverse (301321244), we get a palindrome (743444347).

The spelling of 442123103 in words is "four hundred forty-two million, one hundred twenty-three thousand, one hundred three".