20000331321 has 8 divisors (see below), whose sum is σ = 26826792384. Its totient is φ = 13253712240.

The previous prime is 20000331289. The next prime is 20000331359. The reversal of 20000331321 is 12313300002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20000331321 - 2⁵ = 20000331289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20000331321.

It is not an unprimeable number, because it can be changed into a prime (20000331121) 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, 19959910 + ... + 19960911.

It is an arithmetic number, because the mean of its divisors is an integer number (3353349048).

Almost surely, 2^20000331321 is an apocalyptic number.

It is an amenable number.

20000331321 is a deficient number, since it is larger than the sum of its proper divisors (6826461063).

20000331321 is a wasteful number, since it uses less digits than its factorization.

20000331321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39920991.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20000331321 its reverse (12313300002), we get a palindrome (32313631323).

The spelling of 20000331321 in words is "twenty billion, three hundred thirty-one thousand, three hundred twenty-one".