442023422123 has 4 divisors (see below), whose sum is σ = 442025018400. Its totient is φ = 442021825848.

The previous prime is 442023422119. The next prime is 442023422143. The reversal of 442023422123 is 321224320244.

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 442023422123 - 2² = 442023422119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442023422143) 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, 263315 + ... + 976412.

It is an arithmetic number, because the mean of its divisors is an integer number (110506254600).

Almost surely, 2^442023422123 is an apocalyptic number.

442023422123 is a deficient number, since it is larger than the sum of its proper divisors (1596277).

442023422123 is a wasteful number, since it uses less digits than its factorization.

442023422123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596276.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 442023422123 its reverse (321224320244), we get a palindrome (763247742367).

The spelling of 442023422123 in words is "four hundred forty-two billion, twenty-three million, four hundred twenty-two thousand, one hundred twenty-three".