111546312043 has 4 divisors (see below), whose sum is σ = 113211182440. Its totient is φ = 109881441648.

The previous prime is 111546312029. The next prime is 111546312077. The reversal of 111546312043 is 340213645111.

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 111546312043 - 2²⁵ = 111512757611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111546311996 and 111546312014.

It is not an unprimeable number, because it can be changed into a prime (111546312023) 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, 832435098 + ... + 832435231.

It is an arithmetic number, because the mean of its divisors is an integer number (28302795610).

Almost surely, 2^111546312043 is an apocalyptic number.

111546312043 is a deficient number, since it is larger than the sum of its proper divisors (1664870397).

111546312043 is an equidigital number, since it uses as much as digits as its factorization.

111546312043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664870396.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 111546312043 its reverse (340213645111), we get a palindrome (451759957154).

The spelling of 111546312043 in words is "one hundred eleven billion, five hundred forty-six million, three hundred twelve thousand, forty-three".