111434243423 has 4 divisors (see below), whose sum is σ = 111515762160. Its totient is φ = 111352724688.

The previous prime is 111434243387. The next prime is 111434243429. The reversal of 111434243423 is 324342434111.

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 111434243423 - 2²⁴ = 111417466207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111434243423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111434243429) 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, 40757318 + ... + 40760051.

It is an arithmetic number, because the mean of its divisors is an integer number (27878940540).

Almost surely, 2^111434243423 is an apocalyptic number.

111434243423 is a deficient number, since it is larger than the sum of its proper divisors (81518737).

111434243423 is an equidigital number, since it uses as much as digits as its factorization.

111434243423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81518736.

The product of its digits is 27648, while the sum is 32.

Adding to 111434243423 its reverse (324342434111), we get a palindrome (435776677534).

The spelling of 111434243423 in words is "one hundred eleven billion, four hundred thirty-four million, two hundred forty-three thousand, four hundred twenty-three".