1123132321200 has 240 divisors, whose sum is σ = 3702337990560. Its totient is φ = 290828943360.

The previous prime is 1123132321133. The next prime is 1123132321217. The reversal of 1123132321200 is 21232313211.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×1123132321200² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22574752 + ... + 22624448.

It is an arithmetic number, because the mean of its divisors is an integer number (15426408294).

Almost surely, 2^{1123132321200} is an apocalyptic number.

1123132321200 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 1123132321200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1851168995280).

1123132321200 is an abundant number, since it is smaller than the sum of its proper divisors (2579205669360).

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

1123132321200 is a wasteful number, since it uses less digits than its factorization.

1123132321200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50264 (or 50253 counting only the distinct ones).

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

Adding to 1123132321200 its reverse (21232313211), we get a palindrome (1144364634411).

The spelling of 1123132321200 in words is "one trillion, one hundred twenty-three billion, one hundred thirty-two million, three hundred twenty-one thousand, two hundred".