311113031233220 has 24 divisors (see below), whose sum is σ = 657664103116608. Its totient is φ = 123621072012000.

The previous prime is 311113031233201. The next prime is 311113031233231. The reversal of 311113031233220 is 22332130311113.

It is a self number, because there is not a number n which added to its sum of digits gives 311113031233220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51508776986 + ... + 51508783025.

It is an arithmetic number, because the mean of its divisors is an integer number (27402670963192).

Almost surely, 2^{311113031233220} is an apocalyptic number.

It is an amenable number.

311113031233220 is an abundant number, since it is smaller than the sum of its proper divisors (346551071883388).

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

311113031233220 is a wasteful number, since it uses less digits than its factorization.

311113031233220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103017560171 (or 103017560169 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 311113031233220 its reverse (22332130311113), we get a palindrome (333445161544333).

The spelling of 311113031233220 in words is "three hundred eleven trillion, one hundred thirteen billion, thirty-one million, two hundred thirty-three thousand, two hundred twenty".