13030504523549 has 4 divisors (see below), whose sum is σ = 13032883660764. Its totient is φ = 13028125386336.

The previous prime is 13030504523537. The next prime is 13030504523563. The reversal of 13030504523549 is 94532540503031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11783820621049 + 1246683902500 = 3432757^2 + 1116550^2 .

It is a cyclic number.

It is not a de Polignac number, because 13030504523549 - 2³² = 13026209556253 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 (13030504526549) 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, 1189560392 + ... + 1189571345.

It is an arithmetic number, because the mean of its divisors is an integer number (3258220915191).

Almost surely, 2^{13030504523549} is an apocalyptic number.

It is an amenable number.

13030504523549 is a deficient number, since it is larger than the sum of its proper divisors (2379137215).

13030504523549 is an equidigital number, since it uses as much as digits as its factorization.

13030504523549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2379137214.

The product of its (nonzero) digits is 972000, while the sum is 44.

The spelling of 13030504523549 in words is "thirteen trillion, thirty billion, five hundred four million, five hundred twenty-three thousand, five hundred forty-nine".