21300405130 has 8 divisors (see below), whose sum is σ = 38340729252. Its totient is φ = 8520162048.

The previous prime is 21300405127. The next prime is 21300405131. The reversal of 21300405130 is 3150400312.

It can be written as a sum of positive squares in 2 ways, for example, as 20296846089 + 1003559041 = 142467^2 + 31679^2 .

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 = 21300405098 and 21300405107.

It is not an unprimeable number, because it can be changed into a prime (21300405131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065020247 + ... + 1065020266.

Almost surely, 2^21300405130 is an apocalyptic number.

21300405130 is a deficient number, since it is larger than the sum of its proper divisors (17040324122).

21300405130 is a wasteful number, since it uses less digits than its factorization.

21300405130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130040520.

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 21300405130 its reverse (3150400312), we get a palindrome (24450805442).

The spelling of 21300405130 in words is "twenty-one billion, three hundred million, four hundred five thousand, one hundred thirty".