111132203231 has 8 divisors (see below), whose sum is σ = 131387826720. Its totient is φ = 91971478368.

The previous prime is 111132203227. The next prime is 111132203233. The reversal of 111132203231 is 132302231111.

It is a happy number.

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

It is not a de Polignac number, because 111132203231 - 2² = 111132203227 is a prime.

It is a super-2 number, since 2×111132203231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111132203233) 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, 273724436 + ... + 273724841.

It is an arithmetic number, because the mean of its divisors is an integer number (16423478340).

Almost surely, 2^111132203231 is an apocalyptic number.

111132203231 is a deficient number, since it is larger than the sum of its proper divisors (20255623489).

111132203231 is an equidigital number, since it uses as much as digits as its factorization.

111132203231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547449313.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 111132203231 its reverse (132302231111), we get a palindrome (243434434342).

The spelling of 111132203231 in words is "one hundred eleven billion, one hundred thirty-two million, two hundred three thousand, two hundred thirty-one".