311313240404 has 12 divisors (see below), whose sum is σ = 544968283104. Its totient is φ = 155608016664.

The previous prime is 311313240397. The next prime is 311313240419. The reversal of 311313240404 is 404042313113.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12136472 + ... + 12162095.

It is an arithmetic number, because the mean of its divisors is an integer number (45414023592).

Almost surely, 2^311313240404 is an apocalyptic number.

It is an amenable number.

311313240404 is a deficient number, since it is larger than the sum of its proper divisors (233655042700).

311313240404 is a wasteful number, since it uses less digits than its factorization.

311313240404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24301774 (or 24301772 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 311313240404 its reverse (404042313113), we get a palindrome (715355553517).

The spelling of 311313240404 in words is "three hundred eleven billion, three hundred thirteen million, two hundred forty thousand, four hundred four".