13043420231449 has 2 divisors, whose sum is σ = 13043420231450. Its totient is φ = 13043420231448.

The previous prime is 13043420231269. The next prime is 13043420231459. The reversal of 13043420231449 is 94413202434031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12992470713049 + 50949518400 = 3604507^2 + 225720^2 .

It is a cyclic number.

It is not a de Polignac number, because 13043420231449 - 2¹⁷ = 13043420100377 is a prime.

It is a super-2 number, since 2×13043420231449² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13043420231459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6521710115724 + 6521710115725.

It is an arithmetic number, because the mean of its divisors is an integer number (6521710115725).

Almost surely, 2^{13043420231449} is an apocalyptic number.

It is an amenable number.

13043420231449 is a deficient number, since it is larger than the sum of its proper divisors (1).

13043420231449 is an equidigital number, since it uses as much as digits as its factorization.

13043420231449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 13043420231449 in words is "thirteen trillion, forty-three billion, four hundred twenty million, two hundred thirty-one thousand, four hundred forty-nine".