21301420130 has 16 divisors (see below), whose sum is σ = 38347638840. Its totient is φ = 8519438592.

The previous prime is 21301420097. The next prime is 21301420171. The reversal of 21301420130 is 3102410312.

It can be written as a sum of positive squares in 4 ways, for example, as 20193262609 + 1108157521 = 142103^2 + 33289^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21301420099 and 21301420108.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 59735 + ... + 214874.

Almost surely, 2^21301420130 is an apocalyptic number.

21301420130 is a deficient number, since it is larger than the sum of its proper divisors (17046218710).

21301420130 is a wasteful number, since it uses less digits than its factorization.

21301420130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282373.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21301420130 its reverse (3102410312), we get a palindrome (24403830442).

The spelling of 21301420130 in words is "twenty-one billion, three hundred one million, four hundred twenty thousand, one hundred thirty".