313043235145 has 4 divisors (see below), whose sum is σ = 375651882180. Its totient is φ = 250434588112.

The previous prime is 313043235067. The next prime is 313043235151. The reversal of 313043235145 is 541532340313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541532340313 = 149 ⋅3634445237.

It can be written as a sum of positive squares in 2 ways, for example, as 230495049801 + 82548185344 = 480099^2 + 287312^2 .

It is a cyclic number.

It is not a de Polignac number, because 313043235145 - 2¹⁹ = 313042710857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313043235145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31304323510 + ... + 31304323519.

It is an arithmetic number, because the mean of its divisors is an integer number (93912970545).

Almost surely, 2^313043235145 is an apocalyptic number.

It is an amenable number.

313043235145 is a deficient number, since it is larger than the sum of its proper divisors (62608647035).

313043235145 is an equidigital number, since it uses as much as digits as its factorization.

313043235145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62608647034.

The product of its (nonzero) digits is 64800, while the sum is 34.

Adding to 313043235145 its reverse (541532340313), we get a palindrome (854575575458).

The spelling of 313043235145 in words is "three hundred thirteen billion, forty-three million, two hundred thirty-five thousand, one hundred forty-five".