21342341130 has 32 divisors (see below), whose sum is σ = 55878130368. Its totient is φ = 5173900800.

The previous prime is 21342341123. The next prime is 21342341159. The reversal of 21342341130 is 3114324312.

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 21342341130.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32336551 + ... + 32337210.

It is an arithmetic number, because the mean of its divisors is an integer number (1746191574).

Almost surely, 2^21342341130 is an apocalyptic number.

21342341130 is an abundant number, since it is smaller than the sum of its proper divisors (34535789238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21342341130 is a wasteful number, since it uses less digits than its factorization.

21342341130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64673782.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 21342341130 its reverse (3114324312), we get a palindrome (24456665442).

The spelling of 21342341130 in words is "twenty-one billion, three hundred forty-two million, three hundred forty-one thousand, one hundred thirty".