11321221323333 has 4 divisors (see below), whose sum is σ = 15094961764448. Its totient is φ = 7547480882220.

The previous prime is 11321221323263. The next prime is 11321221323337. The reversal of 11321221323333 is 33332312212311.

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 not a de Polignac number, because 11321221323333 - 2²² = 11321217129029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11321221323333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321221323337) 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, 1886870220553 + ... + 1886870220558.

It is an arithmetic number, because the mean of its divisors is an integer number (3773740441112).

Almost surely, 2^{11321221323333} is an apocalyptic number.

It is an amenable number.

11321221323333 is a deficient number, since it is larger than the sum of its proper divisors (3773740441115).

11321221323333 is an equidigital number, since it uses as much as digits as its factorization.

11321221323333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3773740441114.

The product of its digits is 11664, while the sum is 30.

Adding to 11321221323333 its reverse (33332312212311), we get a palindrome (44653533535644).

The spelling of 11321221323333 in words is "eleven trillion, three hundred twenty-one billion, two hundred twenty-one million, three hundred twenty-three thousand, three hundred thirty-three".