21302012113 has 8 divisors (see below), whose sum is σ = 21437715200. Its totient is φ = 21166596000.

The previous prime is 21302012063. The next prime is 21302012131. The reversal of 21302012113 is 31121020312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21302012113 is a prime.

It is a super-6 number, since 6×21302012113⁶ (a number of 63 digits) contains 666666 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21302012213) 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, 78181 + ... + 220717.

It is an arithmetic number, because the mean of its divisors is an integer number (2679714400).

Almost surely, 2^21302012113 is an apocalyptic number.

It is an amenable number.

21302012113 is a deficient number, since it is larger than the sum of its proper divisors (135703087).

21302012113 is a wasteful number, since it uses less digits than its factorization.

21302012113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143487.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21302012113 its reverse (31121020312), we get a palindrome (52423032425).

The spelling of 21302012113 in words is "twenty-one billion, three hundred two million, twelve thousand, one hundred thirteen".