21342430130 has 32 divisors (see below), whose sum is σ = 43955426304. Its totient is φ = 7308904896.

The previous prime is 21342430127. The next prime is 21342430189. The reversal of 21342430130 is 3103424312.

It is a junction number, because it is equal to n+sod(n) for n = 21342430096 and 21342430105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116237 + ... + 237056.

It is an arithmetic number, because the mean of its divisors is an integer number (1373607072).

Almost surely, 2^21342430130 is an apocalyptic number.

21342430130 is an abundant number, since it is smaller than the sum of its proper divisors (22612996174).

21342430130 is a wasteful number, since it uses less digits than its factorization.

21342430130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354170.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 21342430130 its reverse (3103424312), we get a palindrome (24445854442).

The spelling of 21342430130 in words is "twenty-one billion, three hundred forty-two million, four hundred thirty thousand, one hundred thirty".