303121304112 has 160 divisors (see below), whose sum is σ = 899548139520. Its totient is φ = 86987900160.

The previous prime is 303121304111. The next prime is 303121304183. The reversal of 303121304112 is 211403121303.

It is not an unprimeable number, because it can be changed into a prime (303121304111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43404973 + ... + 43411955.

It is an arithmetic number, because the mean of its divisors is an integer number (5622175872).

Almost surely, 2^303121304112 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 303121304112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (449774069760).

303121304112 is an abundant number, since it is smaller than the sum of its proper divisors (596426835408).

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

303121304112 is a wasteful number, since it uses less digits than its factorization.

303121304112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11351 (or 11345 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 303121304112 its reverse (211403121303), we get a palindrome (514524425415).

The spelling of 303121304112 in words is "three hundred three billion, one hundred twenty-one million, three hundred four thousand, one hundred twelve".