21300415423 has 8 divisors (see below), whose sum is σ = 24383841440. Its totient is φ = 18227116800.

The previous prime is 21300415417. The next prime is 21300415427. The reversal of 21300415423 is 32451400312.

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 21300415423 - 2¹³ = 21300407231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300415427) 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, 2527338 + ... + 2535751.

It is an arithmetic number, because the mean of its divisors is an integer number (3047980180).

Almost surely, 2^21300415423 is an apocalyptic number.

21300415423 is a deficient number, since it is larger than the sum of its proper divisors (3083426017).

21300415423 is an equidigital number, since it uses as much as digits as its factorization.

21300415423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5063697.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 21300415423 its reverse (32451400312), we get a palindrome (53751815735).

The spelling of 21300415423 in words is "twenty-one billion, three hundred million, four hundred fifteen thousand, four hundred twenty-three".