311206213124 has 12 divisors (see below), whose sum is σ = 544920499200. Its totient is φ = 155514641928.

The previous prime is 311206213111. The next prime is 311206213207. The reversal of 311206213124 is 421312602113.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 311206213093 and 311206213102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22108244 + ... + 22122315.

It is an arithmetic number, because the mean of its divisors is an integer number (45410041600).

Almost surely, 2^311206213124 is an apocalyptic number.

It is an amenable number.

311206213124 is a deficient number, since it is larger than the sum of its proper divisors (233714286076).

311206213124 is a wasteful number, since it uses less digits than its factorization.

311206213124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44232322 (or 44232320 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 311206213124 its reverse (421312602113), we get a palindrome (732518815237).

The spelling of 311206213124 in words is "three hundred eleven billion, two hundred six million, two hundred thirteen thousand, one hundred twenty-four".