321872140801 has 16 divisors (see below), whose sum is σ = 329454777600. Its totient is φ = 314382676608.

The previous prime is 321872140783. The next prime is 321872140817. The reversal of 321872140801 is 108041278123.

It is a cyclic number.

It is not a de Polignac number, because 321872140801 - 2²³ = 321863752193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321872140301) 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, 3687895 + ... + 3774163.

It is an arithmetic number, because the mean of its divisors is an integer number (20590923600).

Almost surely, 2^321872140801 is an apocalyptic number.

It is an amenable number.

321872140801 is a deficient number, since it is larger than the sum of its proper divisors (7582636799).

321872140801 is a wasteful number, since it uses less digits than its factorization.

321872140801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86808.

The product of its (nonzero) digits is 21504, while the sum is 37.

The spelling of 321872140801 in words is "three hundred twenty-one billion, eight hundred seventy-two million, one hundred forty thousand, eight hundred one".