11520114421111 has 4 divisors (see below), whose sum is σ = 11715370597800. Its totient is φ = 11324858244424.

The previous prime is 11520114421073. The next prime is 11520114421129. The reversal of 11520114421111 is 11112441102511.

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

It is a cyclic number.

It is not a de Polignac number, because 11520114421111 - 2²⁹ = 11519577550199 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 (11520114421171) 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, 97628088256 + ... + 97628088373.

It is an arithmetic number, because the mean of its divisors is an integer number (2928842649450).

Almost surely, 2^{11520114421111} is an apocalyptic number.

11520114421111 is a deficient number, since it is larger than the sum of its proper divisors (195256176689).

11520114421111 is an equidigital number, since it uses as much as digits as its factorization.

11520114421111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195256176688.

The product of its (nonzero) digits is 320, while the sum is 25.

Adding to 11520114421111 its reverse (11112441102511), we get a palindrome (22632555523622).

The spelling of 11520114421111 in words is "eleven trillion, five hundred twenty billion, one hundred fourteen million, four hundred twenty-one thousand, one hundred eleven".