1123323312000 has 512 divisors, whose sum is σ = 3968580096000. Its totient is φ = 280419532800.

The previous prime is 1123323311969. The next prime is 1123323312037. The reversal of 1123323312000 is 2133233211.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 51877176 + ... + 51898824.

It is an arithmetic number, because the mean of its divisors is an integer number (7751133000).

Almost surely, 2^{1123323312000} is an apocalyptic number.

1123323312000 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 1123323312000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1984290048000).

1123323312000 is an abundant number, since it is smaller than the sum of its proper divisors (2845256784000).

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

1123323312000 is a wasteful number, since it uses less digits than its factorization.

1123323312000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21751 (or 21729 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1123323312000 its reverse (2133233211), we get a palindrome (1125456545211).

The spelling of 1123323312000 in words is "one trillion, one hundred twenty-three billion, three hundred twenty-three million, three hundred twelve thousand".