321442872901 has 16 divisors (see below), whose sum is σ = 324042750720. Its totient is φ = 318856063680.

The previous prime is 321442872827. The next prime is 321442872931. The reversal of 321442872901 is 109278244123.

It is a cyclic number.

It is not a de Polignac number, because 321442872901 - 2⁹ = 321442872389 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 (321442872931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73774015 + ... + 73778371.

It is an arithmetic number, because the mean of its divisors is an integer number (20252671920).

Almost surely, 2^321442872901 is an apocalyptic number.

It is an amenable number.

321442872901 is a deficient number, since it is larger than the sum of its proper divisors (2599877819).

321442872901 is a wasteful number, since it uses less digits than its factorization.

321442872901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5724.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 321442872901 in words is "three hundred twenty-one billion, four hundred forty-two million, eight hundred seventy-two thousand, nine hundred one".