311841340 has 24 divisors (see below), whose sum is σ = 655239312. Its totient is φ = 124665600.

The previous prime is 311841329. The next prime is 311841419. The reversal of 311841340 is 43148113.

311841340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 45115 + ... + 51565.

It is an arithmetic number, because the mean of its divisors is an integer number (27301638).

Almost surely, 2^311841340 is an apocalyptic number.

It is an amenable number.

311841340 is an abundant number, since it is smaller than the sum of its proper divisors (343397972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311841340 is a wasteful number, since it uses less digits than its factorization.

311841340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8877 (or 8875 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 311841340 is about 17659.0299846849. The cubic root of 311841340 is about 678.1273012444.

Adding to 311841340 its reverse (43148113), we get a palindrome (354989453).

The spelling of 311841340 in words is "three hundred eleven million, eight hundred forty-one thousand, three hundred forty".