311340255 has 32 divisors (see below), whose sum is σ = 507083520. Its totient is φ = 163088640.

The previous prime is 311340241. The next prime is 311340257. The reversal of 311340255 is 552043113.

It is not a de Polignac number, because 311340255 - 2¹² = 311336159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311340257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 362016 + ... + 362874.

It is an arithmetic number, because the mean of its divisors is an integer number (15846360).

Almost surely, 2^311340255 is an apocalyptic number.

311340255 is a deficient number, since it is larger than the sum of its proper divisors (195743265).

311340255 is a wasteful number, since it uses less digits than its factorization.

311340255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 311340255 is about 17644.8364968339. The cubic root of 311340255 is about 677.7638882509.

Adding to 311340255 its reverse (552043113), we get a palindrome (863383368).

The spelling of 311340255 in words is "three hundred eleven million, three hundred forty thousand, two hundred fifty-five".