11331130121131 has 4 divisors (see below), whose sum is σ = 11331140730832. Its totient is φ = 11331119511432.

The previous prime is 11331130121123. The next prime is 11331130121173. The reversal of 11331130121131 is 13112103113311.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11331130121131 - 2³ = 11331130121123 is a prime.

It is a super-2 number, since 2×11331130121131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11331130121111) 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, 3497631 + ... + 5907256.

It is an arithmetic number, because the mean of its divisors is an integer number (2832785182708).

Almost surely, 2^{11331130121131} is an apocalyptic number.

11331130121131 is a deficient number, since it is larger than the sum of its proper divisors (10609701).

11331130121131 is an equidigital number, since it uses as much as digits as its factorization.

11331130121131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10609700.

The product of its (nonzero) digits is 162, while the sum is 22.

Adding to 11331130121131 its reverse (13112103113311), we get a palindrome (24443233234442).

The spelling of 11331130121131 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty million, one hundred twenty-one thousand, one hundred thirty-one".