1123043422420 has 24 divisors (see below), whose sum is σ = 2359574608104. Its totient is φ = 448991955456.

The previous prime is 1123043422409. The next prime is 1123043422421. The reversal of 1123043422420 is 242243403211.

It can be written as a sum of positive squares in 4 ways, for example, as 146733431364 + 976309991056 = 383058^2 + 988084^2 .

It is a super-2 number, since 2×1123043422420² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123043422421) 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 7 ways as a sum of consecutive naturals, for example, 14047489 + ... + 14127208.

It is an arithmetic number, because the mean of its divisors is an integer number (98315608671).

Almost surely, 2^{1123043422420} is an apocalyptic number.

1123043422420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123043422420 is an abundant number, since it is smaller than the sum of its proper divisors (1236531185684).

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

1123043422420 is a wasteful number, since it uses less digits than its factorization.

1123043422420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28176699 (or 28176697 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 1123043422420 its reverse (242243403211), we get a palindrome (1365286825631).

The spelling of 1123043422420 in words is "one trillion, one hundred twenty-three billion, forty-three million, four hundred twenty-two thousand, four hundred twenty".