21304334030 has 32 divisors (see below), whose sum is σ = 44014186944. Its totient is φ = 7272988416.

The previous prime is 21304334027. The next prime is 21304334033. The reversal of 21304334030 is 3043340312.

It is an interprime number because it is at equal distance from previous prime (21304334027) and next prime (21304334033).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21304333987 and 21304334005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21304334033) 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, 636797 + ... + 669416.

It is an arithmetic number, because the mean of its divisors is an integer number (1375443342).

Almost surely, 2^21304334030 is an apocalyptic number.

21304334030 is an abundant number, since it is smaller than the sum of its proper divisors (22709852914).

21304334030 is a wasteful number, since it uses less digits than its factorization.

21304334030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306460.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 21304334030 its reverse (3043340312), we get a palindrome (24347674342).

The spelling of 21304334030 in words is "twenty-one billion, three hundred four million, three hundred thirty-four thousand, thirty".