1123245222784 has 64 divisors (see below), whose sum is σ = 2310352289280. Its totient is φ = 543399206400.

The previous prime is 1123245222773. The next prime is 1123245222787. The reversal of 1123245222784 is 4872225423211.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 1123245222784.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123245222787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22525239 + ... + 22575049.

It is an arithmetic number, because the mean of its divisors is an integer number (36099254520).

Almost surely, 2^{1123245222784} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123245222784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1155176144640).

1123245222784 is an abundant number, since it is smaller than the sum of its proper divisors (1187107066496).

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

1123245222784 is an equidigital number, since it uses as much as digits as its factorization.

1123245222784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55539 (or 55527 counting only the distinct ones).

The product of its digits is 430080, while the sum is 43.

The spelling of 1123245222784 in words is "one trillion, one hundred twenty-three billion, two hundred forty-five million, two hundred twenty-two thousand, seven hundred eighty-four".