13043563253 has 4 divisors (see below), whose sum is σ = 14906929440. Its totient is φ = 11180197068.

The previous prime is 13043563241. The next prime is 13043563261. The reversal of 13043563253 is 35236534031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35236534031 = 73 ⋅482692247.

It is a cyclic number.

It is not a de Polignac number, because 13043563253 - 2²⁴ = 13026786037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13043563453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 931683083 + ... + 931683096.

It is an arithmetic number, because the mean of its divisors is an integer number (3726732360).

Almost surely, 2^13043563253 is an apocalyptic number.

It is an amenable number.

13043563253 is a deficient number, since it is larger than the sum of its proper divisors (1863366187).

13043563253 is an equidigital number, since it uses as much as digits as its factorization.

13043563253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863366186.

The product of its (nonzero) digits is 97200, while the sum is 35.

The spelling of 13043563253 in words is "thirteen billion, forty-three million, five hundred sixty-three thousand, two hundred fifty-three".