311041044220 has 12 divisors (see below), whose sum is σ = 653186192904. Its totient is φ = 124416417680.

The previous prime is 311041044217. The next prime is 311041044271. The reversal of 311041044220 is 22440140113.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 311041044191 and 311041044200.

It is a congruent number.

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, 7776026086 + ... + 7776026125.

It is an arithmetic number, because the mean of its divisors is an integer number (54432182742).

Almost surely, 2^311041044220 is an apocalyptic number.

It is an amenable number.

311041044220 is an abundant number, since it is smaller than the sum of its proper divisors (342145148684).

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

311041044220 is a wasteful number, since it uses less digits than its factorization.

311041044220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15552052220 (or 15552052218 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 311041044220 its reverse (22440140113), we get a palindrome (333481184333).

The spelling of 311041044220 in words is "three hundred eleven billion, forty-one million, forty-four thousand, two hundred twenty".