321213200985 has 48 divisors (see below), whose sum is σ = 561069624960. Its totient is φ = 169991665920.

The previous prime is 321213200977. The next prime is 321213201013. The reversal of 321213200985 is 589002312123.

321213200985 is a `hidden beast` number, since 321 + 2 + 1 + 320 + 0 + 9 + 8 + 5 = 666.

It is not a de Polignac number, because 321213200985 - 2³ = 321213200977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16703706 + ... + 16722924.

It is an arithmetic number, because the mean of its divisors is an integer number (11688950520).

Almost surely, 2^321213200985 is an apocalyptic number.

It is an amenable number.

321213200985 is a deficient number, since it is larger than the sum of its proper divisors (239856423975).

321213200985 is a wasteful number, since it uses less digits than its factorization.

321213200985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22078 (or 22075 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 321213200985 in words is "three hundred twenty-one billion, two hundred thirteen million, two hundred thousand, nine hundred eighty-five".