303211312112 has 80 divisors (see below), whose sum is σ = 627862894560. Its totient is φ = 141355401216.

The previous prime is 303211312097. The next prime is 303211312267. The reversal of 303211312112 is 211213112303.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13305464 + ... + 13328232.

It is an arithmetic number, because the mean of its divisors is an integer number (7848286182).

Almost surely, 2^303211312112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 303211312112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313931447280).

303211312112 is an abundant number, since it is smaller than the sum of its proper divisors (324651582448).

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

303211312112 is a wasteful number, since it uses less digits than its factorization.

303211312112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23250 (or 23244 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 303211312112 its reverse (211213112303), we get a palindrome (514424424415).

The spelling of 303211312112 in words is "three hundred three billion, two hundred eleven million, three hundred twelve thousand, one hundred twelve".