11331121212321 has 32 divisors (see below), whose sum is σ = 15250516807680. Its totient is φ = 7483118385600.

The previous prime is 11331121212289. The next prime is 11331121212353. The reversal of 11331121212321 is 12321212113311.

It is an interprime number because it is at equal distance from previous prime (11331121212289) and next prime (11331121212353).

It is not a de Polignac number, because 11331121212321 - 2⁵ = 11331121212289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11331121212291 and 11331121212300.

It is not an unprimeable number, because it can be changed into a prime (11331121212221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 659429296 + ... + 659446478.

It is an arithmetic number, because the mean of its divisors is an integer number (476578650240).

Almost surely, 2^{11331121212321} is an apocalyptic number.

It is an amenable number.

11331121212321 is a deficient number, since it is larger than the sum of its proper divisors (3919395595359).

11331121212321 is a wasteful number, since it uses less digits than its factorization.

11331121212321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20197.

The product of its digits is 432, while the sum is 24.

Adding to 11331121212321 its reverse (12321212113311), we get a palindrome (23652333325632).

The spelling of 11331121212321 in words is "eleven trillion, three hundred thirty-one billion, one hundred twenty-one million, two hundred twelve thousand, three hundred twenty-one".