11331131121109 has 4 divisors (see below), whose sum is σ = 11637377908204. Its totient is φ = 11024884334016.

The previous prime is 11331131121083. The next prime is 11331131121143. The reversal of 11331131121109 is 90112113113311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4196639044900 + 7134492076209 = 2048570^2 + 2671047^2 .

It is a cyclic number.

It is not a de Polignac number, because 11331131121109 - 2³⁹ = 10781375307221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331131121169) 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 3 ways as a sum of consecutive naturals, for example, 153123393492 + ... + 153123393565.

It is an arithmetic number, because the mean of its divisors is an integer number (2909344477051).

Almost surely, 2^{11331131121109} is an apocalyptic number.

It is an amenable number.

11331131121109 is a deficient number, since it is larger than the sum of its proper divisors (306246787095).

11331131121109 is an equidigital number, since it uses as much as digits as its factorization.

11331131121109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306246787094.

The product of its (nonzero) digits is 486, while the sum is 28.

The spelling of 11331131121109 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-one million, one hundred twenty-one thousand, one hundred nine".