1123331223111 has 16 divisors (see below), whose sum is σ = 1499306718720. Its totient is φ = 748121846400.

The previous prime is 1123331223083. The next prime is 1123331223137. The reversal of 1123331223111 is 1113221333211.

It is not a de Polignac number, because 1123331223111 - 2²¹ = 1123329125959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123331227111) 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, 21025650 + ... + 21079008.

It is an arithmetic number, because the mean of its divisors is an integer number (93706669920).

Almost surely, 2^{1123331223111} is an apocalyptic number.

1123331223111 is a deficient number, since it is larger than the sum of its proper divisors (375975495609).

1123331223111 is a wasteful number, since it uses less digits than its factorization.

1123331223111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60406.

The product of its digits is 648, while the sum is 24.

Adding to 1123331223111 its reverse (1113221333211), we get a palindrome (2236552556322).

The spelling of 1123331223111 in words is "one trillion, one hundred twenty-three billion, three hundred thirty-one million, two hundred twenty-three thousand, one hundred eleven".