111131011423 has 8 divisors (see below), whose sum is σ = 119325428640. Its totient is φ = 103120738560.

The previous prime is 111131011421. The next prime is 111131011441. The reversal of 111131011423 is 324110131111.

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 111131011423 - 2¹ = 111131011421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111131011423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111131011421) 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, 46034838 + ... + 46037251.

It is an arithmetic number, because the mean of its divisors is an integer number (14915678580).

Almost surely, 2^111131011423 is an apocalyptic number.

111131011423 is a deficient number, since it is larger than the sum of its proper divisors (8194417217).

111131011423 is an equidigital number, since it uses as much as digits as its factorization.

111131011423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92072177.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 111131011423 its reverse (324110131111), we get a palindrome (435241142534).

The spelling of 111131011423 in words is "one hundred eleven billion, one hundred thirty-one million, eleven thousand, four hundred twenty-three".