22323109981 has 2 divisors, whose sum is σ = 22323109982. Its totient is φ = 22323109980.

The previous prime is 22323109973. The next prime is 22323110053. The reversal of 22323109981 is 18990132322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14282401081 + 8040708900 = 119509^2 + 89670^2 .

It is a cyclic number.

It is not a de Polignac number, because 22323109981 - 2³ = 22323109973 is a prime.

It is a super-3 number, since 3×22323109981³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22323109181) 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, 11161554990 + 11161554991.

It is an arithmetic number, because the mean of its divisors is an integer number (11161554991).

Almost surely, 2^22323109981 is an apocalyptic number.

It is an amenable number.

22323109981 is a deficient number, since it is larger than the sum of its proper divisors (1).

22323109981 is an equidigital number, since it uses as much as digits as its factorization.

22323109981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 22323109981 in words is "twenty-two billion, three hundred twenty-three million, one hundred nine thousand, nine hundred eighty-one".