321331013001 has 24 divisors (see below), whose sum is σ = 501778168320. Its totient is φ = 197460874656.

The previous prime is 321331012999. The next prime is 321331013057. The reversal of 321331013001 is 100310133123.

It is a happy number.

321331013001 is a `hidden beast` number, since 32 + 1 + 331 + 0 + 1 + 300 + 1 = 666.

It is not a de Polignac number, because 321331013001 - 2¹ = 321331012999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (321331013401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25387305 + ... + 25399958.

It is an arithmetic number, because the mean of its divisors is an integer number (20907423680).

Almost surely, 2^321331013001 is an apocalyptic number.

It is an amenable number.

321331013001 is a deficient number, since it is larger than the sum of its proper divisors (180447155319).

321331013001 is a wasteful number, since it uses less digits than its factorization.

321331013001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50787325 (or 50787322 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 321331013001 its reverse (100310133123), we get a palindrome (421641146124).

The spelling of 321331013001 in words is "three hundred twenty-one billion, three hundred thirty-one million, thirteen thousand, one".