21302433430430 has 16 divisors (see below), whose sum is σ = 38346194471760. Its totient is φ = 8520570195072.

The previous prime is 21302433430423. The next prime is 21302433430433. The reversal of 21302433430430 is 3403433420312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302433430433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50175179 + ... + 50597958.

It is an arithmetic number, because the mean of its divisors is an integer number (2396637154485).

Almost surely, 2^{21302433430430} is an apocalyptic number.

21302433430430 is a deficient number, since it is larger than the sum of its proper divisors (17043761041330).

21302433430430 is a wasteful number, since it uses less digits than its factorization.

21302433430430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100794283.

The product of its (nonzero) digits is 62208, while the sum is 32.

Adding to 21302433430430 its reverse (3403433420312), we get a palindrome (24705866850742).

The spelling of 21302433430430 in words is "twenty-one trillion, three hundred two billion, four hundred thirty-three million, four hundred thirty thousand, four hundred thirty".