13243195293553 has 4 divisors (see below), whose sum is σ = 13300033041828. Its totient is φ = 13186357545280.

The previous prime is 13243195293521. The next prime is 13243195293557. The reversal of 13243195293553 is 35539259134231.

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 1084249460529 + 12158945833024 = 1041273^2 + 3486968^2 .

It is a cyclic number.

It is not a de Polignac number, because 13243195293553 - 2⁵ = 13243195293521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13243195293494 and 13243195293503.

It is not an unprimeable number, because it can be changed into a prime (13243195293557) 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, 28418873788 + ... + 28418874253.

It is an arithmetic number, because the mean of its divisors is an integer number (3325008260457).

Almost surely, 2^{13243195293553} is an apocalyptic number.

It is an amenable number.

13243195293553 is a deficient number, since it is larger than the sum of its proper divisors (56837748275).

13243195293553 is an equidigital number, since it uses as much as digits as its factorization.

13243195293553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56837748274.

The product of its digits is 13122000, while the sum is 55.

The spelling of 13243195293553 in words is "thirteen trillion, two hundred forty-three billion, one hundred ninety-five million, two hundred ninety-three thousand, five hundred fifty-three".