345313321 has 8 divisors (see below), whose sum is σ = 346944384. Its totient is φ = 343686960.

The previous prime is 345313303. The next prime is 345313327. The reversal of 345313321 is 123313543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 345313321 - 2¹⁵ = 345280553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345313327) 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, 263550 + ... + 264856.

It is an arithmetic number, because the mean of its divisors is an integer number (43368048).

Almost surely, 2^345313321 is an apocalyptic number.

It is an amenable number.

345313321 is a deficient number, since it is larger than the sum of its proper divisors (1631063).

345313321 is a wasteful number, since it uses less digits than its factorization.

345313321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351.

The product of its digits is 3240, while the sum is 25.

The square root of 345313321 is about 18582.6080247096. The cubic root of 345313321 is about 701.5701631043.

Adding to 345313321 its reverse (123313543), we get a palindrome (468626864).

The spelling of 345313321 in words is "three hundred forty-five million, three hundred thirteen thousand, three hundred twenty-one".