11331211131121 has 12 divisors (see below), whose sum is σ = 13537477196992. Its totient is φ = 9290185520616.

The previous prime is 11331211131073. The next prime is 11331211131139. The reversal of 11331211131121 is 12113111213311.

It is a happy number.

It is not a de Polignac number, because 11331211131121 - 2¹⁷ = 11331211000049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11331211131092 and 11331211131101.

It is not an unprimeable number, because it can be changed into a prime (11331211131181) 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 11 ways as a sum of consecutive naturals, for example, 1530000501 + ... + 1530007906.

Almost surely, 2^{11331211131121} is an apocalyptic number.

It is an amenable number.

11331211131121 is a deficient number, since it is larger than the sum of its proper divisors (2206266065871).

11331211131121 is an equidigital number, since it uses as much as digits as its factorization.

11331211131121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3060008460 (or 3060008437 counting only the distinct ones).

The product of its digits is 108, while the sum is 22.

Adding to 11331211131121 its reverse (12113111213311), we get a palindrome (23444322344432).

The spelling of 11331211131121 in words is "eleven trillion, three hundred thirty-one billion, two hundred eleven million, one hundred thirty-one thousand, one hundred twenty-one".