20320323122 has 16 divisors (see below), whose sum is σ = 34024728672. Its totient is φ = 9021707520.

The previous prime is 20320323109. The next prime is 20320323157. The reversal of 20320323122 is 22132302302.

It is a junction number, because it is equal to n+sod(n) for n = 20320323094 and 20320323103.

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, 10739183 + ... + 10741074.

It is an arithmetic number, because the mean of its divisors is an integer number (2126545542).

Almost surely, 2^20320323122 is an apocalyptic number.

20320323122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20320323122 is a deficient number, since it is larger than the sum of its proper divisors (13704405550).

20320323122 is a wasteful number, since it uses less digits than its factorization.

20320323122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21480313.

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

Adding to 20320323122 its reverse (22132302302), we get a palindrome (42452625424).

The spelling of 20320323122 in words is "twenty billion, three hundred twenty million, three hundred twenty-three thousand, one hundred twenty-two".