1123133223211 has 4 divisors (see below), whose sum is σ = 1123135355232. Its totient is φ = 1123131091192.

The previous prime is 1123133223151. The next prime is 1123133223227. The reversal of 1123133223211 is 1123223313211.

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

It is a cyclic number.

It is not a de Polignac number, because 1123133223211 - 2³⁹ = 573377409323 is a prime.

It is a super-2 number, since 2×1123133223211² (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 (1123133223811) 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, 360381 + ... + 1541473.

It is an arithmetic number, because the mean of its divisors is an integer number (280783838808).

Almost surely, 2^{1123133223211} is an apocalyptic number.

1123133223211 is a deficient number, since it is larger than the sum of its proper divisors (2132021).

1123133223211 is an equidigital number, since it uses as much as digits as its factorization.

1123133223211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132020.

The product of its digits is 1296, while the sum is 25.

Adding to 1123133223211 its reverse (1123223313211), we get a palindrome (2246356536422).

The spelling of 1123133223211 in words is "one trillion, one hundred twenty-three billion, one hundred thirty-three million, two hundred twenty-three thousand, two hundred eleven".