402321442444123 has 8 divisors (see below), whose sum is σ = 423525157173200. Its totient is φ = 381120617911968.

The previous prime is 402321442444121. The next prime is 402321442444153. The reversal of 402321442444123 is 321444244123204.

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 402321442444123 - 2¹ = 402321442444121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402321442444121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722263488 + ... + 722820301.

It is an arithmetic number, because the mean of its divisors is an integer number (52940644646650).

Almost surely, 2^{402321442444123} is an apocalyptic number.

402321442444123 is a deficient number, since it is larger than the sum of its proper divisors (21203714729077).

402321442444123 is a wasteful number, since it uses less digits than its factorization.

402321442444123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445098461.

The product of its (nonzero) digits is 589824, while the sum is 40.

Adding to 402321442444123 its reverse (321444244123204), we get a palindrome (723765686567327).

The spelling of 402321442444123 in words is "four hundred two trillion, three hundred twenty-one billion, four hundred forty-two million, four hundred forty-four thousand, one hundred twenty-three".