12544410921233 has 2 divisors, whose sum is σ = 12544410921234. Its totient is φ = 12544410921232.

The previous prime is 12544410921191. The next prime is 12544410921241. The reversal of 12544410921233 is 33212901444521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12026517677329 + 517893243904 = 3467927^2 + 719648^2 .

It is a cyclic number.

It is not a de Polignac number, because 12544410921233 - 2⁶ = 12544410921169 is a prime.

It is not a weakly prime, because it can be changed into another prime (12544410921433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6272205460616 + 6272205460617.

It is an arithmetic number, because the mean of its divisors is an integer number (6272205460617).

Almost surely, 2^{12544410921233} is an apocalyptic number.

It is an amenable number.

12544410921233 is a deficient number, since it is larger than the sum of its proper divisors (1).

12544410921233 is an equidigital number, since it uses as much as digits as its factorization.

12544410921233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 12544410921233 in words is "twelve trillion, five hundred forty-four billion, four hundred ten million, nine hundred twenty-one thousand, two hundred thirty-three".