111042520443 has 12 divisors (see below), whose sum is σ = 160724110768. Its totient is φ = 73876335120.

The previous prime is 111042520427. The next prime is 111042520451. The reversal of 111042520443 is 344025240111.

It is not a de Polignac number, because 111042520443 - 2⁴ = 111042520427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111042520423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12663028 + ... + 12671793.

Almost surely, 2^111042520443 is an apocalyptic number.

111042520443 is a deficient number, since it is larger than the sum of its proper divisors (49681590325).

111042520443 is a wasteful number, since it uses less digits than its factorization.

111042520443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25335314 (or 25335311 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 111042520443 its reverse (344025240111), we get a palindrome (455067760554).

The spelling of 111042520443 in words is "one hundred eleven billion, forty-two million, five hundred twenty thousand, four hundred forty-three".