111343606423 has 4 divisors (see below), whose sum is σ = 127249835920. Its totient is φ = 95437376928.

The previous prime is 111343606421. The next prime is 111343606433. The reversal of 111343606423 is 324606343111.

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 111343606423 - 2¹ = 111343606421 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 (111343606421) 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, 7953114738 + ... + 7953114751.

It is an arithmetic number, because the mean of its divisors is an integer number (31812458980).

Almost surely, 2^111343606423 is an apocalyptic number.

111343606423 is a deficient number, since it is larger than the sum of its proper divisors (15906229497).

111343606423 is an equidigital number, since it uses as much as digits as its factorization.

111343606423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15906229496.

The product of its (nonzero) digits is 31104, while the sum is 34.

Adding to 111343606423 its reverse (324606343111), we get a palindrome (435949949534).

The spelling of 111343606423 in words is "one hundred eleven billion, three hundred forty-three million, six hundred six thousand, four hundred twenty-three".