21300313223 has 16 divisors (see below), whose sum is σ = 25639384320. Its totient is φ = 17286405696.

The previous prime is 21300313213. The next prime is 21300313231. The reversal of 21300313223 is 32231300312.

It is not a de Polignac number, because 21300313223 - 2¹² = 21300309127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21300313195 and 21300313204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300313213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186515 + ... + 278187.

It is an arithmetic number, because the mean of its divisors is an integer number (1602461520).

Almost surely, 2^21300313223 is an apocalyptic number.

21300313223 is a deficient number, since it is larger than the sum of its proper divisors (4339071097).

21300313223 is a wasteful number, since it uses less digits than its factorization.

21300313223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93446.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21300313223 its reverse (32231300312), we get a palindrome (53531613535).

The spelling of 21300313223 in words is "twenty-one billion, three hundred million, three hundred thirteen thousand, two hundred twenty-three".