111434231011 has 4 divisors (see below), whose sum is σ = 111533461192. Its totient is φ = 111335000832.

The previous prime is 111434231009. The next prime is 111434231057. The reversal of 111434231011 is 110132434111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110132434111 = 7 ⋅15733204873.

It is a cyclic number.

It is not a de Polignac number, because 111434231011 - 2¹ = 111434231009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111434231911) 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, 49613406 + ... + 49615651.

It is an arithmetic number, because the mean of its divisors is an integer number (27883365298).

Almost surely, 2^111434231011 is an apocalyptic number.

111434231011 is a deficient number, since it is larger than the sum of its proper divisors (99230181).

111434231011 is an equidigital number, since it uses as much as digits as its factorization.

111434231011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99230180.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 111434231011 its reverse (110132434111), we get a palindrome (221566665122).

The spelling of 111434231011 in words is "one hundred eleven billion, four hundred thirty-four million, two hundred thirty-one thousand, eleven".