20140042503 has 32 divisors (see below), whose sum is σ = 32320880640. Its totient is φ = 10897463520.

The previous prime is 20140042487. The next prime is 20140042567. The reversal of 20140042503 is 30524004102.

It is not a de Polignac number, because 20140042503 - 2⁴ = 20140042487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 20140042503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20140042303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 869158 + ... + 892028.

It is an arithmetic number, because the mean of its divisors is an integer number (1010027520).

Almost surely, 2^20140042503 is an apocalyptic number.

20140042503 is a deficient number, since it is larger than the sum of its proper divisors (12180838137).

20140042503 is a wasteful number, since it uses less digits than its factorization.

20140042503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25107.

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 20140042503 its reverse (30524004102), we get a palindrome (50664046605).

The spelling of 20140042503 in words is "twenty billion, one hundred forty million, forty-two thousand, five hundred three".