111528538797103 has 4 divisors (see below), whose sum is σ = 111528727817760. Its totient is φ = 111528349776448.

The previous prime is 111528538797101. The next prime is 111528538797127. The reversal of 111528538797103 is 301797835825111.

It is a happy number.

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 111528538797103 - 2¹ = 111528538797101 is a prime.

It is a super-2 number, since 2×111528538797103² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111528538797101) 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, 93622498 + ... + 94806271.

It is an arithmetic number, because the mean of its divisors is an integer number (27882181954440).

Almost surely, 2^{111528538797103} is an apocalyptic number.

111528538797103 is a deficient number, since it is larger than the sum of its proper divisors (189020657).

111528538797103 is an equidigital number, since it uses as much as digits as its factorization.

111528538797103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189020656.

The product of its (nonzero) digits is 12700800, while the sum is 61.

The spelling of 111528538797103 in words is "one hundred eleven trillion, five hundred twenty-eight billion, five hundred thirty-eight million, seven hundred ninety-seven thousand, one hundred three".