1123333231211 has 4 divisors (see below), whose sum is σ = 1135954953000. Its totient is φ = 1110711509424.

The previous prime is 1123333231177. The next prime is 1123333231243. The reversal of 1123333231211 is 1121323333211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123333231211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123333231291) 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, 6310860761 + ... + 6310860938.

It is an arithmetic number, because the mean of its divisors is an integer number (283988738250).

Almost surely, 2^{1123333231211} is an apocalyptic number.

1123333231211 is a deficient number, since it is larger than the sum of its proper divisors (12621721789).

1123333231211 is an equidigital number, since it uses as much as digits as its factorization.

1123333231211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12621721788.

The product of its digits is 1944, while the sum is 26.

Adding to 1123333231211 its reverse (1121323333211), we get a palindrome (2244656564422).

The spelling of 1123333231211 in words is "one trillion, one hundred twenty-three billion, three hundred thirty-three million, two hundred thirty-one thousand, two hundred eleven".