21300211024 has 20 divisors (see below), whose sum is σ = 41376923136. Its totient is φ = 10622295392.

The previous prime is 21300211001. The next prime is 21300211039. The reversal of 21300211024 is 42011200312.

It is a super-2 number, since 2×21300211024² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 21300210989 and 21300211007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1731814 + ... + 1744069.

Almost surely, 2^21300211024 is an apocalyptic number.

It is an amenable number.

21300211024 is a deficient number, since it is larger than the sum of its proper divisors (20076712112).

21300211024 is a wasteful number, since it uses less digits than its factorization.

21300211024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3476274 (or 3476268 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21300211024 its reverse (42011200312), we get a palindrome (63311411336).

It can be divided in two parts, 21300 and 211024, that added together give a square (232324 = 482²).

The spelling of 21300211024 in words is "twenty-one billion, three hundred million, two hundred eleven thousand, twenty-four".