311124020 has 24 divisors (see below), whose sum is σ = 667263744. Its totient is φ = 121801376.

The previous prime is 311123999. The next prime is 311124053. The reversal of 311124020 is 20421113.

It is a junction number, because it is equal to n+sod(n) for n = 311123986 and 311124004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164552 + ... + 166431.

It is an arithmetic number, because the mean of its divisors is an integer number (27802656).

Almost surely, 2^311124020 is an apocalyptic number.

It is an amenable number.

311124020 is an abundant number, since it is smaller than the sum of its proper divisors (356139724).

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

311124020 is a wasteful number, since it uses less digits than its factorization.

311124020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331039 (or 331037 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 311124020 is about 17638.7080025721. The cubic root of 311124020 is about 677.6069429000.

Adding to 311124020 its reverse (20421113), we get a palindrome (331545133).

The spelling of 311124020 in words is "three hundred eleven million, one hundred twenty-four thousand, twenty".