1123221033123 has 24 divisors (see below), whose sum is σ = 1754672149440. Its totient is φ = 637223020560.

The previous prime is 1123221033071. The next prime is 1123221033133. The reversal of 1123221033123 is 3213301223211.

It is not a de Polignac number, because 1123221033123 - 2¹² = 1123221029027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1123221033093 and 1123221033102.

It is not an unprimeable number, because it can be changed into a prime (1123221033133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27465033 + ... + 27505898.

It is an arithmetic number, because the mean of its divisors is an integer number (73111339560).

Almost surely, 2^{1123221033123} is an apocalyptic number.

1123221033123 is a deficient number, since it is larger than the sum of its proper divisors (631451116317).

1123221033123 is a wasteful number, since it uses less digits than its factorization.

1123221033123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54971087 (or 54971080 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1123221033123 its reverse (3213301223211), we get a palindrome (4336522256334).

The spelling of 1123221033123 in words is "one trillion, one hundred twenty-three billion, two hundred twenty-one million, thirty-three thousand, one hundred twenty-three".