303203220012 has 144 divisors (see below), whose sum is σ = 956975265792. Its totient is φ = 78636579840.

The previous prime is 303203219999. The next prime is 303203220029. The reversal of 303203220012 is 210022302303.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1784293 + ... + 1946819.

It is an arithmetic number, because the mean of its divisors is an integer number (6645661568).

Almost surely, 2^303203220012 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 303203220012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (478487632896).

303203220012 is an abundant number, since it is smaller than the sum of its proper divisors (653772045780).

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

303203220012 is a wasteful number, since it uses less digits than its factorization.

303203220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163228 (or 163223 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 303203220012 its reverse (210022302303), we get a palindrome (513225522315).

The spelling of 303203220012 in words is "three hundred three billion, two hundred three million, two hundred twenty thousand, twelve".