21301473103 has 8 divisors (see below), whose sum is σ = 21726815760. Its totient is φ = 20878273920.

The previous prime is 21301473091. The next prime is 21301473113. The reversal of 21301473103 is 30137410312.

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 21301473103 - 2⁵ = 21301473071 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 (21301473113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515788 + ... + 555553.

It is an arithmetic number, because the mean of its divisors is an integer number (2715851970).

Almost surely, 2^21301473103 is an apocalyptic number.

21301473103 is a deficient number, since it is larger than the sum of its proper divisors (425342657).

21301473103 is a wasteful number, since it uses less digits than its factorization.

21301473103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071737.

The product of its (nonzero) digits is 1512, while the sum is 25.

Adding to 21301473103 its reverse (30137410312), we get a palindrome (51438883415).

The spelling of 21301473103 in words is "twenty-one billion, three hundred one million, four hundred seventy-three thousand, one hundred three".