313434205213 has 4 divisors (see below), whose sum is σ = 331871511420. Its totient is φ = 294996899008.

The previous prime is 313434205187. The next prime is 313434205267. The reversal of 313434205213 is 312502434313.

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 213298032964 + 100136172249 = 461842^2 + 316443^2 .

It is a cyclic number.

It is not a de Polignac number, because 313434205213 - 2²⁵ = 313400650781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313434205613) 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, 9218653078 + ... + 9218653111.

It is an arithmetic number, because the mean of its divisors is an integer number (82967877855).

Almost surely, 2^313434205213 is an apocalyptic number.

It is an amenable number.

313434205213 is a deficient number, since it is larger than the sum of its proper divisors (18437306207).

313434205213 is a wasteful number, since it uses less digits than its factorization.

313434205213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18437306206.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 313434205213 its reverse (312502434313), we get a palindrome (625936639526).

The spelling of 313434205213 in words is "three hundred thirteen billion, four hundred thirty-four million, two hundred five thousand, two hundred thirteen".