13044023241421 has 2 divisors, whose sum is σ = 13044023241422. Its totient is φ = 13044023241420.

The previous prime is 13044023241391. The next prime is 13044023241461. The reversal of 13044023241421 is 12414232044031.

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., 6620256956196 + 6423766285225 = 2572986^2 + 2534515^2 .

It is a cyclic number.

It is not a de Polignac number, because 13044023241421 - 2⁹ = 13044023240909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13044023241461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6522011620710 + 6522011620711.

It is an arithmetic number, because the mean of its divisors is an integer number (6522011620711).

Almost surely, 2^{13044023241421} is an apocalyptic number.

It is an amenable number.

13044023241421 is a deficient number, since it is larger than the sum of its proper divisors (1).

13044023241421 is an equidigital number, since it uses as much as digits as its factorization.

13044023241421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 13044023241421 its reverse (12414232044031), we get a palindrome (25458255285452).

The spelling of 13044023241421 in words is "thirteen trillion, forty-four billion, twenty-three million, two hundred forty-one thousand, four hundred twenty-one".