21300120211223 has 32 divisors (see below), whose sum is σ = 26493708769920. Its totient is φ = 16706968842240.

The previous prime is 21300120211211. The next prime is 21300120211267. The reversal of 21300120211223 is 32211202100312.

It is a cyclic number.

It is not a de Polignac number, because 21300120211223 - 2¹⁰ = 21300120210199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21300120211195 and 21300120211204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300120211283) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6020408 + ... + 8879501.

It is an arithmetic number, because the mean of its divisors is an integer number (827928399060).

Almost surely, 2^{21300120211223} is an apocalyptic number.

21300120211223 is a deficient number, since it is larger than the sum of its proper divisors (5193588558697).

21300120211223 is a wasteful number, since it uses less digits than its factorization.

21300120211223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14900267.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21300120211223 its reverse (32211202100312), we get a palindrome (53511322311535).

The spelling of 21300120211223 in words is "twenty-one trillion, three hundred billion, one hundred twenty million, two hundred eleven thousand, two hundred twenty-three".