1123303121200 has 120 divisors (see below), whose sum is σ = 2973920486768. Its totient is φ = 405112458240.

The previous prime is 1123303121183. The next prime is 1123303121201. The reversal of 1123303121200 is 21213033211.

It is not an unprimeable number, because it can be changed into a prime (1123303121201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2288259 + ... + 2735458.

Almost surely, 2^{1123303121200} is an apocalyptic number.

1123303121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123303121200 is an abundant number, since it is smaller than the sum of its proper divisors (1850617365568).

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

1123303121200 is a wasteful number, since it uses less digits than its factorization.

1123303121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5023791 (or 5023780 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1123303121200 its reverse (21213033211), we get a palindrome (1144516154411).

The spelling of 1123303121200 in words is "one trillion, one hundred twenty-three billion, three hundred three million, one hundred twenty-one thousand, two hundred".