111520005103 has 6 divisors (see below), whose sum is σ = 120758348904. Its totient is φ = 102941543016.

The previous prime is 111520005097. The next prime is 111520005133. The reversal of 111520005103 is 301500025111.

It is a de Polignac number, because none of the positive numbers 2^k-111520005103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111520005133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 329940675 + ... + 329941012.

It is an arithmetic number, because the mean of its divisors is an integer number (20126391484).

Almost surely, 2^111520005103 is an apocalyptic number.

111520005103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

111520005103 is a deficient number, since it is larger than the sum of its proper divisors (9238343801).

111520005103 is an equidigital number, since it uses as much as digits as its factorization.

111520005103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659881713 (or 659881700 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 19.

The spelling of 111520005103 in words is "one hundred eleven billion, five hundred twenty million, five thousand, one hundred three".