13323444389 has 2 divisors, whose sum is σ = 13323444390. Its totient is φ = 13323444388.

The previous prime is 13323444353. The next prime is 13323444443. The reversal of 13323444389 is 98344432331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7609596289 + 5713848100 = 87233^2 + 75590^2 .

It is a cyclic number.

It is not a de Polignac number, because 13323444389 - 2³² = 9028477093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13323414389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6661722194 + 6661722195.

It is an arithmetic number, because the mean of its divisors is an integer number (6661722195).

Almost surely, 2^13323444389 is an apocalyptic number.

It is an amenable number.

13323444389 is a deficient number, since it is larger than the sum of its proper divisors (1).

13323444389 is an equidigital number, since it uses as much as digits as its factorization.

13323444389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 44.

The spelling of 13323444389 in words is "thirteen billion, three hundred twenty-three million, four hundred forty-four thousand, three hundred eighty-nine".