11331131333321 has 4 divisors (see below), whose sum is σ = 11696651698944. Its totient is φ = 10965610967700.

The previous prime is 11331131333317. The next prime is 11331131333329. The reversal of 11331131333321 is 12333313113311.

11331131333321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11331131333321 - 2² = 11331131333317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11331131333329) 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, 182760182765 + ... + 182760182826.

It is an arithmetic number, because the mean of its divisors is an integer number (2924162924736).

Almost surely, 2^{11331131333321} is an apocalyptic number.

It is an amenable number.

11331131333321 is a deficient number, since it is larger than the sum of its proper divisors (365520365623).

11331131333321 is an equidigital number, since it uses as much as digits as its factorization.

11331131333321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365520365622.

The product of its digits is 4374, while the sum is 29.

Adding to 11331131333321 its reverse (12333313113311), we get a palindrome (23664444446632).

The spelling of 11331131333321 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-one million, three hundred thirty-three thousand, three hundred twenty-one".