344305313431 has 4 divisors (see below), whose sum is σ = 344910420000. Its totient is φ = 343700206864.

The previous prime is 344305313347. The next prime is 344305313441. The reversal of 344305313431 is 134313503443.

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

It is a cyclic number.

It is not a de Polignac number, because 344305313431 - 2¹⁷ = 344305182359 is a prime.

It is a super-2 number, since 2×344305313431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344305313441) 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, 302552431 + ... + 302553568.

It is an arithmetic number, because the mean of its divisors is an integer number (86227605000).

Almost surely, 2^344305313431 is an apocalyptic number.

344305313431 is a deficient number, since it is larger than the sum of its proper divisors (605106569).

344305313431 is an equidigital number, since it uses as much as digits as its factorization.

344305313431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605106568.

The product of its (nonzero) digits is 77760, while the sum is 34.

Adding to 344305313431 its reverse (134313503443), we get a palindrome (478618816874).

The spelling of 344305313431 in words is "three hundred forty-four billion, three hundred five million, three hundred thirteen thousand, four hundred thirty-one".