21300223311 has 24 divisors (see below), whose sum is σ = 31835447280. Its totient is φ = 13707246336.

The previous prime is 21300223309. The next prime is 21300223367. The reversal of 21300223311 is 11332200312.

21300223311 is a `hidden beast` number, since 2 + 130 + 0 + 223 + 311 = 666.

It is not a de Polignac number, because 21300223311 - 2¹ = 21300223309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300263311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1626556 + ... + 1639598.

It is an arithmetic number, because the mean of its divisors is an integer number (1326476970).

Almost surely, 2^21300223311 is an apocalyptic number.

21300223311 is a deficient number, since it is larger than the sum of its proper divisors (10535223969).

21300223311 is a wasteful number, since it uses less digits than its factorization.

21300223311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19335 (or 19332 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21300223311 its reverse (11332200312), we get a palindrome (32632423623).

The spelling of 21300223311 in words is "twenty-one billion, three hundred million, two hundred twenty-three thousand, three hundred eleven".