111043403013043 has 4 divisors (see below), whose sum is σ = 112607394604848. Its totient is φ = 109479411421240.

The previous prime is 111043403012981. The next prime is 111043403013077. The reversal of 111043403013043 is 340310304340111.

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 111043403013043 - 2³⁷ = 110905964059571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111043403013343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 781995795796 + ... + 781995795937.

It is an arithmetic number, because the mean of its divisors is an integer number (28151848651212).

Almost surely, 2^{111043403013043} is an apocalyptic number.

111043403013043 is a deficient number, since it is larger than the sum of its proper divisors (1563991591805).

111043403013043 is an equidigital number, since it uses as much as digits as its factorization.

111043403013043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1563991591804.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 111043403013043 its reverse (340310304340111), we get a palindrome (451353707353154).

The spelling of 111043403013043 in words is "one hundred eleven trillion, forty-three billion, four hundred three million, thirteen thousand, forty-three".