20322320012 has 6 divisors (see below), whose sum is σ = 35564060028. Its totient is φ = 10161160004.

The previous prime is 20322319993. The next prime is 20322320017. The reversal of 20322320012 is 21002322302.

It is not an unprimeable number, because it can be changed into a prime (20322320017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2540289998 + ... + 2540290005.

It is an arithmetic number, because the mean of its divisors is an integer number (5927343338).

Almost surely, 2^20322320012 is an apocalyptic number.

It is an amenable number.

20322320012 is a deficient number, since it is larger than the sum of its proper divisors (15241740016).

20322320012 is a wasteful number, since it uses less digits than its factorization.

20322320012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5080580007 (or 5080580005 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20322320012 its reverse (21002322302), we get a palindrome (41324642314).

The spelling of 20322320012 in words is "twenty billion, three hundred twenty-two million, three hundred twenty thousand, twelve".