313043343242403 has 4 divisors (see below), whose sum is σ = 417391124323208. Its totient is φ = 208695562161600.

The previous prime is 313043343242363. The next prime is 313043343242449. The reversal of 313043343242403 is 304242343340313.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 313043343242403 - 2²⁵ = 313043309687971 is a prime.

It is a super-2 number, since 2×313043343242403² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313043343242453) 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, 52173890540398 + ... + 52173890540403.

It is an arithmetic number, because the mean of its divisors is an integer number (104347781080802).

Almost surely, 2^{313043343242403} is an apocalyptic number.

313043343242403 is a deficient number, since it is larger than the sum of its proper divisors (104347781080805).

313043343242403 is a wasteful number, since it uses less digits than its factorization.

313043343242403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104347781080804.

The product of its (nonzero) digits is 746496, while the sum is 39.

Adding to 313043343242403 its reverse (304242343340313), we get a palindrome (617285686582716).

The spelling of 313043343242403 in words is "three hundred thirteen trillion, forty-three billion, three hundred forty-three million, two hundred forty-two thousand, four hundred three".