13043563453 has 2 divisors, whose sum is σ = 13043563454. Its totient is φ = 13043563452.

The previous prime is 13043563411. The next prime is 13043563457. The reversal of 13043563453 is 35436534031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12955447684 + 88115769 = 113822^2 + 9387^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13043563453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13043563457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6521781726 + 6521781727.

It is an arithmetic number, because the mean of its divisors is an integer number (6521781727).

Almost surely, 2^13043563453 is an apocalyptic number.

It is an amenable number.

13043563453 is a deficient number, since it is larger than the sum of its proper divisors (1).

13043563453 is an equidigital number, since it uses as much as digits as its factorization.

13043563453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 37.

The spelling of 13043563453 in words is "thirteen billion, forty-three million, five hundred sixty-three thousand, four hundred fifty-three".