11321131320121 has 24 divisors (see below), whose sum is σ = 13237938668736. Its totient is φ = 9653507851680.

The previous prime is 11321131320113. The next prime is 11321131320209. The reversal of 11321131320121 is 12102313112311.

It is not a de Polignac number, because 11321131320121 - 2³ = 11321131320113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11321131320092 and 11321131320101.

It is not an unprimeable number, because it can be changed into a prime (11321131326121) 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 23 ways as a sum of consecutive naturals, for example, 6884500 + ... + 8368906.

It is an arithmetic number, because the mean of its divisors is an integer number (551580777864).

Almost surely, 2^{11321131320121} is an apocalyptic number.

It is an amenable number.

11321131320121 is a deficient number, since it is larger than the sum of its proper divisors (1916807348615).

11321131320121 is a wasteful number, since it uses less digits than its factorization.

11321131320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485229 (or 1485222 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 11321131320121 its reverse (12102313112311), we get a palindrome (23423444432432).

The spelling of 11321131320121 in words is "eleven trillion, three hundred twenty-one billion, one hundred thirty-one million, three hundred twenty thousand, one hundred twenty-one".