1121303203300 has 144 divisors (see below), whose sum is σ = 2889081336960. Its totient is φ = 369595376640.

The previous prime is 1121303203249. The next prime is 1121303203309. The reversal of 1121303203300 is 33023031211.

It is a super-2 number, since 2×1121303203300² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1121303203309) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4611367 + ... + 4848433.

It is an arithmetic number, because the mean of its divisors is an integer number (20063064840).

Almost surely, 2^{1121303203300} is an apocalyptic number.

1121303203300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121303203300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1444540668480).

1121303203300 is an abundant number, since it is smaller than the sum of its proper divisors (1767778133660).

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

1121303203300 is a wasteful number, since it uses less digits than its factorization.

1121303203300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237350 (or 237343 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 1121303203300 its reverse (33023031211), we get a palindrome (1154326234511).

The spelling of 1121303203300 in words is "one trillion, one hundred twenty-one billion, three hundred three million, two hundred three thousand, three hundred".