111320042231 has 4 divisors (see below), whose sum is σ = 111675697632. Its totient is φ = 110964386832.

The previous prime is 111320042201. The next prime is 111320042359. The reversal of 111320042231 is 132240023111.

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 111320042231 - 2¹⁰ = 111320041207 is a prime.

It is a super-2 number, since 2×111320042231² (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 (111320042201) 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, 177827231 + ... + 177827856.

It is an arithmetic number, because the mean of its divisors is an integer number (27918924408).

Almost surely, 2^111320042231 is an apocalyptic number.

111320042231 is a deficient number, since it is larger than the sum of its proper divisors (355655401).

111320042231 is an equidigital number, since it uses as much as digits as its factorization.

111320042231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355655400.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 111320042231 its reverse (132240023111), we get a palindrome (243560065342).

The spelling of 111320042231 in words is "one hundred eleven billion, three hundred twenty million, forty-two thousand, two hundred thirty-one".