42021200503 has 12 divisors (see below), whose sum is σ = 43402098240. Its totient is φ = 40680540096.

The previous prime is 42021200497. The next prime is 42021200539. The reversal of 42021200503 is 30500212024.

It is not a de Polignac number, because 42021200503 - 2³³ = 33431265911 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 (42021200003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108378 + ... + 309496.

It is an arithmetic number, because the mean of its divisors is an integer number (3616841520).

Almost surely, 2^42021200503 is an apocalyptic number.

42021200503 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

42021200503 is a deficient number, since it is larger than the sum of its proper divisors (1380897737).

42021200503 is a wasteful number, since it uses less digits than its factorization.

42021200503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201318 (or 201275 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 42021200503 its reverse (30500212024), we get a palindrome (72521412527).

The spelling of 42021200503 in words is "forty-two billion, twenty-one million, two hundred thousand, five hundred three".