21300323219 has 8 divisors (see below), whose sum is σ = 24345834240. Its totient is φ = 18255464136.

The previous prime is 21300323203. The next prime is 21300323251. The reversal of 21300323219 is 91232300312.

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

It is not a de Polignac number, because 21300323219 - 2⁴ = 21300323203 is a prime.

It is a super-2 number, since 2×21300323219² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21300323279) 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, 90839 + ... + 225504.

It is an arithmetic number, because the mean of its divisors is an integer number (3043229280).

Almost surely, 2^21300323219 is an apocalyptic number.

21300323219 is a deficient number, since it is larger than the sum of its proper divisors (3045511021).

21300323219 is an equidigital number, since it uses as much as digits as its factorization.

21300323219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325969.

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 21300323219 in words is "twenty-one billion, three hundred million, three hundred twenty-three thousand, two hundred nineteen".