1123212321133 has 4 divisors (see below), whose sum is σ = 1283671224160. Its totient is φ = 962753418108.

The previous prime is 1123212321047. The next prime is 1123212321149. The reversal of 1123212321133 is 3311232123211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1123212321133 - 2³⁷ = 985773367661 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1123212321098 and 1123212321107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123212321163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80229451503 + ... + 80229451516.

It is an arithmetic number, because the mean of its divisors is an integer number (320917806040).

Almost surely, 2^{1123212321133} is an apocalyptic number.

It is an amenable number.

1123212321133 is a deficient number, since it is larger than the sum of its proper divisors (160458903027).

1123212321133 is an equidigital number, since it uses as much as digits as its factorization.

1123212321133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160458903026.

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

Adding to 1123212321133 its reverse (3311232123211), we get a palindrome (4434444444344).

The spelling of 1123212321133 in words is "one trillion, one hundred twenty-three billion, two hundred twelve million, three hundred twenty-one thousand, one hundred thirty-three".