111010042503 has 48 divisors (see below), whose sum is σ = 170703067392. Its totient is φ = 69393024000.

The previous prime is 111010042487. The next prime is 111010042589. The reversal of 111010042503 is 305240010111.

111010042503 is a `hidden beast` number, since 1 + 110 + 10 + 0 + 42 + 503 = 666.

It is not a de Polignac number, because 111010042503 - 2⁴ = 111010042487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111010040503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2465533 + ... + 2510153.

It is an arithmetic number, because the mean of its divisors is an integer number (3556313904).

Almost surely, 2^111010042503 is an apocalyptic number.

111010042503 is a deficient number, since it is larger than the sum of its proper divisors (59693024889).

111010042503 is a wasteful number, since it uses less digits than its factorization.

111010042503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44936 (or 44933 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 111010042503 its reverse (305240010111), we get a palindrome (416250052614).

The spelling of 111010042503 in words is "one hundred eleven billion, ten million, forty-two thousand, five hundred three".