1123444132321 has 16 divisors (see below), whose sum is σ = 1290626853120. Its totient is φ = 957935401920.

The previous prime is 1123444132319. The next prime is 1123444132333. The reversal of 1123444132321 is 1232314443211.

It is a happy number.

It is not a de Polignac number, because 1123444132321 - 2¹ = 1123444132319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123444132361) 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, 11035111 + ... + 11136451.

It is an arithmetic number, because the mean of its divisors is an integer number (80664178320).

Almost surely, 2^{1123444132321} is an apocalyptic number.

It is an amenable number.

1123444132321 is a deficient number, since it is larger than the sum of its proper divisors (167182720799).

1123444132321 is a wasteful number, since it uses less digits than its factorization.

1123444132321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109584.

The product of its digits is 13824, while the sum is 31.

Adding to 1123444132321 its reverse (1232314443211), we get a palindrome (2355758575532).

The spelling of 1123444132321 in words is "one trillion, one hundred twenty-three billion, four hundred forty-four million, one hundred thirty-two thousand, three hundred twenty-one".