311204345 has 8 divisors (see below), whose sum is σ = 373675464. Its totient is φ = 248809984.

The previous prime is 311204297. The next prime is 311204417. The reversal of 311204345 is 543402113.

It can be written as a sum of positive squares in 4 ways, for example, as 201980944 + 109223401 = 14212^2 + 10451^2 .

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 311204345 - 2⁶ = 311204281 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 311204345.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9854 + ... + 26823.

It is an arithmetic number, because the mean of its divisors is an integer number (46709433).

Almost surely, 2^311204345 is an apocalyptic number.

It is an amenable number.

311204345 is a deficient number, since it is larger than the sum of its proper divisors (62471119).

311204345 is a wasteful number, since it uses less digits than its factorization.

311204345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38379.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 311204345 is about 17640.9848081109. The cubic root of 311204345 is about 677.6652520102.

Adding to 311204345 its reverse (543402113), we get a palindrome (854606458).

The spelling of 311204345 in words is "three hundred eleven million, two hundred four thousand, three hundred forty-five".