12304261365257 has 4 divisors (see below), whose sum is σ = 12304319914260. Its totient is φ = 12304202816256.

The previous prime is 12304261365229. The next prime is 12304261365269. The reversal of 12304261365257 is 75256316240321.

It is a happy number.

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 356288416201 + 11947972949056 = 596899^2 + 3456584^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12304261365257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12304261365857) 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, 28958132 + ... + 29379957.

It is an arithmetic number, because the mean of its divisors is an integer number (3076079978565).

Almost surely, 2^{12304261365257} is an apocalyptic number.

It is an amenable number.

12304261365257 is a deficient number, since it is larger than the sum of its proper divisors (58549003).

12304261365257 is an equidigital number, since it uses as much as digits as its factorization.

12304261365257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58549002.

The product of its (nonzero) digits is 1814400, while the sum is 47.

The spelling of 12304261365257 in words is "twelve trillion, three hundred four billion, two hundred sixty-one million, three hundred sixty-five thousand, two hundred fifty-seven".