311325345 has 12 divisors (see below), whose sum is σ = 539630676. Its totient is φ = 166040160.

The previous prime is 311325337. The next prime is 311325361. The reversal of 311325345 is 543523113.

311325345 is a `hidden beast` number, since 311 + 3 + 2 + 5 + 345 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 89643024 + 221682321 = 9468^2 + 14889^2 .

It is not a de Polignac number, because 311325345 - 2³ = 311325337 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3459126 + ... + 3459215.

It is an arithmetic number, because the mean of its divisors is an integer number (44969223).

Almost surely, 2^311325345 is an apocalyptic number.

It is an amenable number.

311325345 is a deficient number, since it is larger than the sum of its proper divisors (228305331).

311325345 is a wasteful number, since it uses less digits than its factorization.

311325345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6918352 (or 6918349 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 311325345 is about 17644.4139885687. The cubic root of 311325345 is about 677.7530687689.

Adding to 311325345 its reverse (543523113), we get a palindrome (854848458).

The spelling of 311325345 in words is "three hundred eleven million, three hundred twenty-five thousand, three hundred forty-five".