21730014503 has 8 divisors (see below), whose sum is σ = 21812385168. Its totient is φ = 21647793024.

The previous prime is 21730014461. The next prime is 21730014521. The reversal of 21730014503 is 30541003712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21730014503 - 2¹⁶ = 21729948967 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 (21730044503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259001 + ... + 332477.

It is an arithmetic number, because the mean of its divisors is an integer number (2726548146).

Almost surely, 2^21730014503 is an apocalyptic number.

21730014503 is a deficient number, since it is larger than the sum of its proper divisors (82370665).

21730014503 is an equidigital number, since it uses as much as digits as its factorization.

21730014503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74593.

The product of its (nonzero) digits is 2520, while the sum is 26.

The spelling of 21730014503 in words is "twenty-one billion, seven hundred thirty million, fourteen thousand, five hundred three".