11333212321 has 4 divisors (see below), whose sum is σ = 11929697200. Its totient is φ = 10736727444.

The previous prime is 11333212313. The next prime is 11333212327. The reversal of 11333212321 is 12321233311.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12321233311 = 52177 ⋅236143.

It is a cyclic number.

It is not a de Polignac number, because 11333212321 - 2³ = 11333212313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11333212292 and 11333212301.

It is not an unprimeable number, because it can be changed into a prime (11333212327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298242411 + ... + 298242448.

It is an arithmetic number, because the mean of its divisors is an integer number (2982424300).

Almost surely, 2^11333212321 is an apocalyptic number.

It is an amenable number.

11333212321 is a deficient number, since it is larger than the sum of its proper divisors (596484879).

11333212321 is an equidigital number, since it uses as much as digits as its factorization.

11333212321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596484878.

The product of its digits is 648, while the sum is 22.

Adding to 11333212321 its reverse (12321233311), we get a palindrome (23654445632).

The spelling of 11333212321 in words is "eleven billion, three hundred thirty-three million, two hundred twelve thousand, three hundred twenty-one".