1123444424321 has 4 divisors (see below), whose sum is σ = 1123595088132. Its totient is φ = 1123293760512.

The previous prime is 1123444424299. The next prime is 1123444424341. The reversal of 1123444424321 is 1234244443211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 564181254400 + 559263169921 = 751120^2 + 747839^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123444424321 - 2²⁶ = 1123377315457 is a prime.

It is a super-2 number, since 2×1123444424321² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123444424341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75320720 + ... + 75335633.

It is an arithmetic number, because the mean of its divisors is an integer number (280898772033).

Almost surely, 2^{1123444424321} is an apocalyptic number.

It is an amenable number.

1123444424321 is a deficient number, since it is larger than the sum of its proper divisors (150663811).

1123444424321 is an equidigital number, since it uses as much as digits as its factorization.

1123444424321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150663810.

The product of its digits is 73728, while the sum is 35.

Adding to 1123444424321 its reverse (1234244443211), we get a palindrome (2357688867532).

The spelling of 1123444424321 in words is "one trillion, one hundred twenty-three billion, four hundred forty-four million, four hundred twenty-four thousand, three hundred twenty-one".