1123320312200 has 24 divisors (see below), whose sum is σ = 2611719726330. Its totient is φ = 449328124800.

The previous prime is 1123320312197. The next prime is 1123320312211. The reversal of 1123320312200 is 22130233211.

It can be written as a sum of positive squares in 3 ways, for example, as 1075480998916 + 47839313284 = 1037054^2 + 218722^2 .

It is a super-2 number, since 2×1123320312200² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2808300581 + ... + 2808300980.

Almost surely, 2^{1123320312200} is an apocalyptic number.

1123320312200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123320312200 is an abundant number, since it is smaller than the sum of its proper divisors (1488399414130).

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

1123320312200 is a wasteful number, since it uses less digits than its factorization.

1123320312200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5616601577 (or 5616601568 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1123320312200 its reverse (22130233211), we get a palindrome (1145450545411).

The spelling of 1123320312200 in words is "one trillion, one hundred twenty-three billion, three hundred twenty million, three hundred twelve thousand, two hundred".