1123412343000 has 256 divisors, whose sum is σ = 3724966103040. Its totient is φ = 280910592000.

The previous prime is 1123412342989. The next prime is 1123412343023. The reversal of 1123412343000 is 3432143211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13780359 + ... + 13861641.

It is an arithmetic number, because the mean of its divisors is an integer number (14550648840).

Almost surely, 2^{1123412343000} is an apocalyptic number.

1123412343000 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 1123412343000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1862483051520).

1123412343000 is an abundant number, since it is smaller than the sum of its proper divisors (2601553760040).

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

1123412343000 is a wasteful number, since it uses less digits than its factorization.

1123412343000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81595 (or 81581 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1123412343000 its reverse (3432143211), we get a palindrome (1126844486211).

The spelling of 1123412343000 in words is "one trillion, one hundred twenty-three billion, four hundred twelve million, three hundred forty-three thousand".