313403643243 has 6 divisors (see below), whose sum is σ = 452694151364. Its totient is φ = 208935762156.

The previous prime is 313403643227. The next prime is 313403643277. The reversal of 313403643243 is 342346304313.

313403643243 is a `hidden beast` number, since 3 + 1 + 3 + 4 + 0 + 3 + 643 + 2 + 4 + 3 = 666.

It is not a de Polignac number, because 313403643243 - 2⁴ = 313403643227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313403643198 and 313403643207.

It is not an unprimeable number, because it can be changed into a prime (313403643283) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 17411313505 + ... + 17411313522.

Almost surely, 2^313403643243 is an apocalyptic number.

313403643243 is a deficient number, since it is larger than the sum of its proper divisors (139290508121).

313403643243 is a wasteful number, since it uses less digits than its factorization.

313403643243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34822627033 (or 34822627030 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 36.

Adding to 313403643243 its reverse (342346304313), we get a palindrome (655749947556).

The spelling of 313403643243 in words is "three hundred thirteen billion, four hundred three million, six hundred forty-three thousand, two hundred forty-three".