21300022030 has 32 divisors (see below), whose sum is σ = 43823125440. Its totient is φ = 7301875200.

The previous prime is 21300022001. The next prime is 21300022031. The reversal of 21300022030 is 3022000312.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21300022030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300022031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 658230 + ... + 689830.

It is an arithmetic number, because the mean of its divisors is an integer number (1369472670).

Almost surely, 2^21300022030 is an apocalyptic number.

21300022030 is an abundant number, since it is smaller than the sum of its proper divisors (22523103410).

21300022030 is a wasteful number, since it uses less digits than its factorization.

21300022030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41244.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 21300022030 its reverse (3022000312), we get a palindrome (24322022342).

The spelling of 21300022030 in words is "twenty-one billion, three hundred million, twenty-two thousand, thirty".