13324250081 has 2 divisors, whose sum is σ = 13324250082. Its totient is φ = 13324250080.

The previous prime is 13324250077. The next prime is 13324250131. The reversal of 13324250081 is 18005242331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8656627681 + 4667622400 = 93041^2 + 68320^2 .

It is a cyclic number.

It is not a de Polignac number, because 13324250081 - 2² = 13324250077 is a prime.

It is a super-2 number, since 2×13324250081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13324250041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6662125040 + 6662125041.

It is an arithmetic number, because the mean of its divisors is an integer number (6662125041).

Almost surely, 2^13324250081 is an apocalyptic number.

It is an amenable number.

13324250081 is a deficient number, since it is larger than the sum of its proper divisors (1).

13324250081 is an equidigital number, since it uses as much as digits as its factorization.

13324250081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 13324250081 in words is "thirteen billion, three hundred twenty-four million, two hundred fifty thousand, eighty-one".