21344470130 has 8 divisors (see below), whose sum is σ = 38420046252. Its totient is φ = 8537788048.

The previous prime is 21344470099. The next prime is 21344470159. The reversal of 21344470130 is 3107444312.

It can be written as a sum of positive squares in 2 ways, for example, as 18853761481 + 2490708649 = 137309^2 + 49907^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21344470093 and 21344470102.

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 3 ways as a sum of consecutive naturals, for example, 1067223497 + ... + 1067223516.

Almost surely, 2^21344470130 is an apocalyptic number.

21344470130 is a deficient number, since it is larger than the sum of its proper divisors (17075576122).

21344470130 is a wasteful number, since it uses less digits than its factorization.

21344470130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134447020.

The product of its (nonzero) digits is 8064, while the sum is 29.

The spelling of 21344470130 in words is "twenty-one billion, three hundred forty-four million, four hundred seventy thousand, one hundred thirty".