1200323311233 has 4 divisors (see below), whose sum is σ = 1600431081648. Its totient is φ = 800215540820.

The previous prime is 1200323311211. The next prime is 1200323311241. The reversal of 1200323311233 is 3321133230021.

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 1200323311233 - 2¹⁰ = 1200323310209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1200323311933) 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, 200053885203 + ... + 200053885208.

It is an arithmetic number, because the mean of its divisors is an integer number (400107770412).

Almost surely, 2^{1200323311233} is an apocalyptic number.

It is an amenable number.

1200323311233 is a deficient number, since it is larger than the sum of its proper divisors (400107770415).

1200323311233 is an equidigital number, since it uses as much as digits as its factorization.

1200323311233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400107770414.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1200323311233 its reverse (3321133230021), we get a palindrome (4521456541254).

The spelling of 1200323311233 in words is "one trillion, two hundred billion, three hundred twenty-three million, three hundred eleven thousand, two hundred thirty-three".