21130302113 has 8 divisors (see below), whose sum is σ = 21377312640. Its totient is φ = 20884209040.

The previous prime is 21130302091. The next prime is 21130302163. The reversal of 21130302113 is 31120303112.

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

It is a cyclic number.

It is not a de Polignac number, because 21130302113 - 2⁶ = 21130302049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21130302091 and 21130302100.

It is not an unprimeable number, because it can be changed into a prime (21130302163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182978 + ... + 275211.

It is an arithmetic number, because the mean of its divisors is an integer number (2672164080).

Almost surely, 2^21130302113 is an apocalyptic number.

It is an amenable number.

21130302113 is a deficient number, since it is larger than the sum of its proper divisors (247010527).

21130302113 is a wasteful number, since it uses less digits than its factorization.

21130302113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458727.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21130302113 its reverse (31120303112), we get a palindrome (52250605225).

Subtracting 21130302113 from its reverse (31120303112), we obtain a palindrome (9990000999).

The spelling of 21130302113 in words is "twenty-one billion, one hundred thirty million, three hundred two thousand, one hundred thirteen".