311321476 has 12 divisors (see below), whose sum is σ = 576860508. Its totient is φ = 146504192.

The previous prime is 311321473. The next prime is 311321477. The reversal of 311321476 is 674123113.

It can be written as a sum of positive squares in 2 ways, for example, as 195328576 + 115992900 = 13976^2 + 10770^2 .

It is a super-2 number, since 2×311321476² = 193842122837637152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (311321471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2289061 + ... + 2289196.

It is an arithmetic number, because the mean of its divisors is an integer number (48071709).

Almost surely, 2^311321476 is an apocalyptic number.

It is an amenable number.

311321476 is a deficient number, since it is larger than the sum of its proper divisors (265539032).

311321476 is a wasteful number, since it uses less digits than its factorization.

311321476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4578278 (or 4578276 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 311321476 is about 17644.3043501295. The cubic root of 311321476 is about 677.7502611620.

Adding to 311321476 its reverse (674123113), we get a palindrome (985444589).

The spelling of 311321476 in words is "three hundred eleven million, three hundred twenty-one thousand, four hundred seventy-six".