311230112022 has 96 divisors (see below), whose sum is σ = 720084062880. Its totient is φ = 100687380480.

The previous prime is 311230112021. The next prime is 311230112077. The reversal of 311230112022 is 220211032113.

311230112022 is a `hidden beast` number, since 311 + 230 + 1 + 120 + 2 + 2 = 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 = 311230111986 and 311230112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311230112021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3805254 + ... + 3886182.

It is an arithmetic number, because the mean of its divisors is an integer number (7500875655).

Almost surely, 2^311230112022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 311230112022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360042031440).

311230112022 is an abundant number, since it is smaller than the sum of its proper divisors (408853950858).

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

311230112022 is a wasteful number, since it uses less digits than its factorization.

311230112022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81180 (or 81168 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 311230112022 its reverse (220211032113), we get a palindrome (531441144135).

The spelling of 311230112022 in words is "three hundred eleven billion, two hundred thirty million, one hundred twelve thousand, twenty-two".