311200113023212 has 12 divisors (see below), whose sum is σ = 622400226046480. Its totient is φ = 133371477009936.

The previous prime is 311200113023183. The next prime is 311200113023243. The reversal of 311200113023212 is 212320311002113.

311200113023212 is an admirable 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, 5557144875387 + ... + 5557144875442.

Almost surely, 2^{311200113023212} is an apocalyptic number.

It is an amenable number.

311200113023212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

311200113023212 is a wasteful number, since it uses less digits than its factorization.

311200113023212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11114289750840 (or 11114289750838 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 311200113023212 its reverse (212320311002113), we get a palindrome (523520424025325).

The spelling of 311200113023212 in words is "three hundred eleven trillion, two hundred billion, one hundred thirteen million, twenty-three thousand, two hundred twelve".