111431524121 has 8 divisors (see below), whose sum is σ = 121341043200. Its totient is φ = 101926475280.

The previous prime is 111431524031. The next prime is 111431524123. The reversal of 111431524121 is 121425134111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111431524121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111431524123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101116985 + ... + 101118086.

It is an arithmetic number, because the mean of its divisors is an integer number (15167630400).

Almost surely, 2^111431524121 is an apocalyptic number.

It is an amenable number.

111431524121 is a deficient number, since it is larger than the sum of its proper divisors (9909519079).

111431524121 is a wasteful number, since it uses less digits than its factorization.

111431524121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202235119.

The product of its digits is 960, while the sum is 26.

Adding to 111431524121 its reverse (121425134111), we get a palindrome (232856658232).

The spelling of 111431524121 in words is "one hundred eleven billion, four hundred thirty-one million, five hundred twenty-four thousand, one hundred twenty-one".