20320321322 has 16 divisors (see below), whose sum is σ = 34842437952. Its totient is φ = 8706808800.

The previous prime is 20320321309. The next prime is 20320321331. The reversal of 20320321322 is 22312302302.

It is a junction number, because it is equal to n+sod(n) for n = 20320321294 and 20320321303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90923 + ... + 221150.

It is an arithmetic number, because the mean of its divisors is an integer number (2177652372).

Almost surely, 2^20320321322 is an apocalyptic number.

20320321322 is a deficient number, since it is larger than the sum of its proper divisors (14522116630).

20320321322 is a wasteful number, since it uses less digits than its factorization.

20320321322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316733.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20320321322 its reverse (22312302302), we get a palindrome (42632623624).

The spelling of 20320321322 in words is "twenty billion, three hundred twenty million, three hundred twenty-one thousand, three hundred twenty-two".