22323343121 has 2 divisors, whose sum is σ = 22323343122. Its totient is φ = 22323343120.

The previous prime is 22323343087. The next prime is 22323343123. The reversal of 22323343121 is 12134332322.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18437566225 + 3885776896 = 135785^2 + 62336^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22323343121 is a prime.

It is a super-3 number, since 3×22323343121³ (a number of 32 digits) contains 333 as substring.

It is a Sophie Germain prime.

Together with 22323343123, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22323343123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11161671560 + 11161671561.

It is an arithmetic number, because the mean of its divisors is an integer number (11161671561).

Almost surely, 2^22323343121 is an apocalyptic number.

It is an amenable number.

22323343121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22323343121 is an equidigital number, since it uses as much as digits as its factorization.

22323343121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 26.

Adding to 22323343121 its reverse (12134332322), we get a palindrome (34457675443).

The spelling of 22323343121 in words is "twenty-two billion, three hundred twenty-three million, three hundred forty-three thousand, one hundred twenty-one".