343423013 has 4 divisors (see below), whose sum is σ = 344058348. Its totient is φ = 342787680.

The previous prime is 343423009. The next prime is 343423019. The reversal of 343423013 is 310324343.

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 202834564 + 140588449 = 14242^2 + 11857^2 .

It is a cyclic number.

It is not a de Polignac number, because 343423013 - 2² = 343423009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 343423013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343423019) 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, 316856 + ... + 317937.

It is an arithmetic number, because the mean of its divisors is an integer number (86014587).

Almost surely, 2^343423013 is an apocalyptic number.

It is an amenable number.

343423013 is a deficient number, since it is larger than the sum of its proper divisors (635335).

343423013 is an equidigital number, since it uses as much as digits as its factorization.

343423013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635334.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 343423013 is about 18531.6759360831. The cubic root of 343423013 is about 700.2876457293.

Adding to 343423013 its reverse (310324343), we get a palindrome (653747356).

The spelling of 343423013 in words is "three hundred forty-three million, four hundred twenty-three thousand, thirteen".