1123223303120 has 80 divisors (see below), whose sum is σ = 2682857192400. Its totient is φ = 437074636800.

The previous prime is 1123223303113. The next prime is 1123223303129. The reversal of 1123223303120 is 213033223211.

It can be written as a sum of positive squares in 8 ways, for example, as 4798609984 + 1118424693136 = 69272^2 + 1057556^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123223303129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 654110 + ... + 1635330.

It is an arithmetic number, because the mean of its divisors is an integer number (33535714905).

Almost surely, 2^{1123223303120} is an apocalyptic number.

1123223303120 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 1123223303120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1341428596200).

1123223303120 is an abundant number, since it is smaller than the sum of its proper divisors (1559633889280).

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

1123223303120 is a wasteful number, since it uses less digits than its factorization.

1123223303120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981624 (or 981618 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1123223303120 its reverse (213033223211), we get a palindrome (1336256526331).

The spelling of 1123223303120 in words is "one trillion, one hundred twenty-three billion, two hundred twenty-three million, three hundred three thousand, one hundred twenty".