442310123 has 2 divisors, whose sum is σ = 442310124. Its totient is φ = 442310122.

The previous prime is 442310053. The next prime is 442310149. The reversal of 442310123 is 321013244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442310123 - 2⁸ = 442309867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 442310095 and 442310104.

It is not a weakly prime, because it can be changed into another prime (442310423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221155061 + 221155062.

It is an arithmetic number, because the mean of its divisors is an integer number (221155062).

Almost surely, 2^442310123 is an apocalyptic number.

442310123 is a deficient number, since it is larger than the sum of its proper divisors (1).

442310123 is an equidigital number, since it uses as much as digits as its factorization.

442310123 is an evil number, because the sum of its binary digits is even.

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

The square root of 442310123 is about 21031.1702717657. The cubic root of 442310123 is about 761.9192736015.

Adding to 442310123 its reverse (321013244), we get a palindrome (763323367).

The spelling of 442310123 in words is "four hundred forty-two million, three hundred ten thousand, one hundred twenty-three".