13023441421 has 2 divisors, whose sum is σ = 13023441422. Its totient is φ = 13023441420.

The previous prime is 13023441349. The next prime is 13023441443. The reversal of 13023441421 is 12414432031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7501465321 + 5521976100 = 86611^2 + 74310^2 .

It is a cyclic number.

It is not a de Polignac number, because 13023441421 - 2²⁵ = 12989886989 is a prime.

It is a super-2 number, since 2×13023441421² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13023481421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6511720710 + 6511720711.

It is an arithmetic number, because the mean of its divisors is an integer number (6511720711).

Almost surely, 2^13023441421 is an apocalyptic number.

It is an amenable number.

13023441421 is a deficient number, since it is larger than the sum of its proper divisors (1).

13023441421 is an equidigital number, since it uses as much as digits as its factorization.

13023441421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 13023441421 its reverse (12414432031), we get a palindrome (25437873452).

The spelling of 13023441421 in words is "thirteen billion, twenty-three million, four hundred forty-one thousand, four hundred twenty-one".