343420321304 has 32 divisors (see below), whose sum is σ = 644817302640. Its totient is φ = 171469209600.

The previous prime is 343420321303. The next prime is 343420321369. The reversal of 343420321304 is 403123024343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343420321303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19186199 + ... + 19204089.

Almost surely, 2^343420321304 is an apocalyptic number.

It is an amenable number.

343420321304 is a deficient number, since it is larger than the sum of its proper divisors (301396981336).

343420321304 is a wasteful number, since it uses less digits than its factorization.

343420321304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21131 (or 21127 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 343420321304 its reverse (403123024343), we get a palindrome (746543345647).

The spelling of 343420321304 in words is "three hundred forty-three billion, four hundred twenty million, three hundred twenty-one thousand, three hundred four".