21302302113 has 12 divisors (see below), whose sum is σ = 30834236160. Its totient is φ = 14171883576.

The previous prime is 21302302111. The next prime is 21302302117. The reversal of 21302302113 is 31120320312.

It is not a de Polignac number, because 21302302113 - 2¹ = 21302302111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21302302111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2466381 + ... + 2475002.

It is an arithmetic number, because the mean of its divisors is an integer number (2569519680).

Almost surely, 2^21302302113 is an apocalyptic number.

It is an amenable number.

21302302113 is a deficient number, since it is larger than the sum of its proper divisors (9531934047).

21302302113 is a wasteful number, since it uses less digits than its factorization.

21302302113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4941868 (or 4941865 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21302302113 its reverse (31120320312), we get a palindrome (52422622425).

The spelling of 21302302113 in words is "twenty-one billion, three hundred two million, three hundred two thousand, one hundred thirteen".