20322320331 has 8 divisors (see below), whose sum is σ = 27209802240. Its totient is φ = 13491525992.

The previous prime is 20322320327. The next prime is 20322320363. The reversal of 20322320331 is 13302322302.

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

It is a cyclic number.

It is not a de Polignac number, because 20322320331 - 2² = 20322320327 is a prime.

It is a super-2 number, since 2×20322320331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20322320298 and 20322320307.

It is not an unprimeable number, because it can be changed into a prime (20322320231) 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, 14171055 + ... + 14172488.

It is an arithmetic number, because the mean of its divisors is an integer number (3401225280).

Almost surely, 2^20322320331 is an apocalyptic number.

20322320331 is a deficient number, since it is larger than the sum of its proper divisors (6887481909).

20322320331 is a wasteful number, since it uses less digits than its factorization.

20322320331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28343785.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20322320331 its reverse (13302322302), we get a palindrome (33624642633).

The spelling of 20322320331 in words is "twenty billion, three hundred twenty-two million, three hundred twenty thousand, three hundred thirty-one".