21001130302 has 32 divisors (see below), whose sum is σ = 33875228160. Its totient is φ = 9728864640.

The previous prime is 21001130291. The next prime is 21001130317. The reversal of 21001130302 is 20303110012.

It is a super-2 number, since 2×21001130302² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5782027 + ... + 5785657.

It is an arithmetic number, because the mean of its divisors is an integer number (1058600880).

Almost surely, 2^21001130302 is an apocalyptic number.

21001130302 is a deficient number, since it is larger than the sum of its proper divisors (12874097858).

21001130302 is a wasteful number, since it uses less digits than its factorization.

21001130302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6256.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 21001130302 its reverse (20303110012), we get a palindrome (41304240314).

The spelling of 21001130302 in words is "twenty-one billion, one million, one hundred thirty thousand, three hundred two".