1123041304320 has 144 divisors (see below), whose sum is σ = 3862614350112. Its totient is φ = 276440924160.

The previous prime is 1123041304291. The next prime is 1123041304321. The reversal of 1123041304320 is 234031403211.

It is a happy number.

It is a super-2 number, since 2×1123041304320² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123041304321) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11198491 + ... + 11298330.

Almost surely, 2^{1123041304320} is an apocalyptic number.

1123041304320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123041304320 is an abundant number, since it is smaller than the sum of its proper divisors (2739573045792).

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

1123041304320 is a wasteful number, since it uses less digits than its factorization.

1123041304320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22496858 (or 22496844 counting only the distinct ones).

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

Adding to 1123041304320 its reverse (234031403211), we get a palindrome (1357072707531).

The spelling of 1123041304320 in words is "one trillion, one hundred twenty-three billion, forty-one million, three hundred four thousand, three hundred twenty".