22321320913 has 2 divisors, whose sum is σ = 22321320914. Its totient is φ = 22321320912.

The previous prime is 22321320863. The next prime is 22321321051. The reversal of 22321320913 is 31902312322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12422662849 + 9898658064 = 111457^2 + 99492^2 .

It is a cyclic number.

It is not a de Polignac number, because 22321320913 - 2⁹ = 22321320401 is a prime.

It is a super-3 number, since 3×22321320913³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (22321320713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11160660456 + 11160660457.

It is an arithmetic number, because the mean of its divisors is an integer number (11160660457).

Almost surely, 2^22321320913 is an apocalyptic number.

It is an amenable number.

22321320913 is a deficient number, since it is larger than the sum of its proper divisors (1).

22321320913 is an equidigital number, since it uses as much as digits as its factorization.

22321320913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 22321320913 in words is "twenty-two billion, three hundred twenty-one million, three hundred twenty thousand, nine hundred thirteen".