311322242 has 16 divisors (see below), whose sum is σ = 582213312. Its totient is φ = 121294320.

The previous prime is 311322233. The next prime is 311322257. The reversal of 311322242 is 242223113.

311322242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 1010633 + ... + 1010940.

It is an arithmetic number, because the mean of its divisors is an integer number (36388332).

Almost surely, 2^311322242 is an apocalyptic number.

311322242 is a deficient number, since it is larger than the sum of its proper divisors (270891070).

311322242 is a wasteful number, since it uses less digits than its factorization.

311322242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021593.

The product of its digits is 576, while the sum is 20.

The square root of 311322242 is about 17644.3260568376. The cubic root of 311322242 is about 677.7508170250.

Adding to 311322242 its reverse (242223113), we get a palindrome (553545355).

The spelling of 311322242 in words is "three hundred eleven million, three hundred twenty-two thousand, two hundred forty-two".