23440211369 has 2 divisors, whose sum is σ = 23440211370. Its totient is φ = 23440211368.

The previous prime is 23440211351. The next prime is 23440211413. The reversal of 23440211369 is 96311204432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13432810000 + 10007401369 = 115900^2 + 100037^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23440211369 is a prime.

It is a super-2 number, since 2×23440211369² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23440211569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11720105684 + 11720105685.

It is an arithmetic number, because the mean of its divisors is an integer number (11720105685).

Almost surely, 2^23440211369 is an apocalyptic number.

It is an amenable number.

23440211369 is a deficient number, since it is larger than the sum of its proper divisors (1).

23440211369 is an equidigital number, since it uses as much as digits as its factorization.

23440211369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 23440211369 in words is "twenty-three billion, four hundred forty million, two hundred eleven thousand, three hundred sixty-nine".