111142403443 has 4 divisors (see below), whose sum is σ = 111146323680. Its totient is φ = 111138483208.

The previous prime is 111142403441. The next prime is 111142403447. The reversal of 111142403443 is 344304241111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344304241111 = 480937 ⋅715903.

It is a cyclic number.

It is not a de Polignac number, because 111142403443 - 2¹ = 111142403441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111142403441) 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, 1917280 + ... + 1974397.

It is an arithmetic number, because the mean of its divisors is an integer number (27786580920).

Almost surely, 2^111142403443 is an apocalyptic number.

111142403443 is a deficient number, since it is larger than the sum of its proper divisors (3920237).

111142403443 is an equidigital number, since it uses as much as digits as its factorization.

111142403443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3920236.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 111142403443 its reverse (344304241111), we get a palindrome (455446644554).

The spelling of 111142403443 in words is "one hundred eleven billion, one hundred forty-two million, four hundred three thousand, four hundred forty-three".