111213311423 has 8 divisors (see below), whose sum is σ = 112115380608. Its totient is φ = 110314844064.

The previous prime is 111213311399. The next prime is 111213311453. The reversal of 111213311423 is 324113312111.

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

It is a cyclic number.

It is not a de Polignac number, because 111213311423 - 2¹⁶ = 111213245887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111213311453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 838436 + ... + 961977.

It is an arithmetic number, because the mean of its divisors is an integer number (14014422576).

Almost surely, 2^111213311423 is an apocalyptic number.

111213311423 is a deficient number, since it is larger than the sum of its proper divisors (902069185).

111213311423 is a wasteful number, since it uses less digits than its factorization.

111213311423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800913.

The product of its digits is 432, while the sum is 23.

Adding to 111213311423 its reverse (324113312111), we get a palindrome (435326623534).

The spelling of 111213311423 in words is "one hundred eleven billion, two hundred thirteen million, three hundred eleven thousand, four hundred twenty-three".