253306324313 has 4 divisors (see below), whose sum is σ = 289492942080. Its totient is φ = 217119706548.

The previous prime is 253306324307. The next prime is 253306324321. The reversal of 253306324313 is 313423603352.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253306324313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (253306324303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18093308873 + ... + 18093308886.

It is an arithmetic number, because the mean of its divisors is an integer number (72373235520).

Almost surely, 2^253306324313 is an apocalyptic number.

It is an amenable number.

253306324313 is a deficient number, since it is larger than the sum of its proper divisors (36186617767).

253306324313 is an equidigital number, since it uses as much as digits as its factorization.

253306324313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36186617766.

The product of its (nonzero) digits is 116640, while the sum is 35.

Adding to 253306324313 its reverse (313423603352), we get a palindrome (566729927665).

The spelling of 253306324313 in words is "two hundred fifty-three billion, three hundred six million, three hundred twenty-four thousand, three hundred thirteen".