442122123 has 8 divisors (see below), whose sum is σ = 615126528. Its totient is φ = 281932904.

The previous prime is 442122113. The next prime is 442122133. The reversal of 442122123 is 321221244.

It is an interprime number because it is at equal distance from previous prime (442122113) and next prime (442122133).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 442122123 - 2⁹ = 442121611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 442122123.

It is not an unprimeable number, because it can be changed into a prime (442122103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3203715 + ... + 3203852.

It is an arithmetic number, because the mean of its divisors is an integer number (76890816).

Almost surely, 2^442122123 is an apocalyptic number.

442122123 is a deficient number, since it is larger than the sum of its proper divisors (173004405).

442122123 is a wasteful number, since it uses less digits than its factorization.

442122123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6407593.

The product of its digits is 768, while the sum is 21.

The square root of 442122123 is about 21026.7002404086. The cubic root of 442122123 is about 761.8113092908.

Adding to 442122123 its reverse (321221244), we get a palindrome (763343367).

It can be divided in two parts, 4421221 and 23, that added together give a palindrome (4421244).

The spelling of 442122123 in words is "four hundred forty-two million, one hundred twenty-two thousand, one hundred twenty-three".