311123030022 has 80 divisors (see below), whose sum is σ = 802820696832. Its totient is φ = 88213685040.

The previous prime is 311123029991. The next prime is 311123030033. The reversal of 311123030022 is 220030321113.

311123030022 is a `hidden beast` number, since 3 + 111 + 230 + 300 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 311123029977 and 311123030004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 898618 + ... + 1195725.

Almost surely, 2^311123030022 is an apocalyptic number.

311123030022 is an abundant number, since it is smaller than the sum of its proper divisors (491697666810).

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

311123030022 is a wasteful number, since it uses less digits than its factorization.

311123030022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094495 (or 2094486 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 311123030022 its reverse (220030321113), we get a palindrome (531153351135).

The spelling of 311123030022 in words is "three hundred eleven billion, one hundred twenty-three million, thirty thousand, twenty-two".