21302041030 has 16 divisors (see below), whose sum is σ = 38587903920. Its totient is φ = 8466543072.

The previous prime is 21302041009. The next prime is 21302041049. The reversal of 21302041030 is 3014020312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21302040995 and 21302041013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6782520 + ... + 6785659.

It is an arithmetic number, because the mean of its divisors is an integer number (2411743995).

Almost surely, 2^21302041030 is an apocalyptic number.

21302041030 is a deficient number, since it is larger than the sum of its proper divisors (17285862890).

21302041030 is a wasteful number, since it uses less digits than its factorization.

21302041030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13568343.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21302041030 its reverse (3014020312), we get a palindrome (24316061342).

The spelling of 21302041030 in words is "twenty-one billion, three hundred two million, forty-one thousand, thirty".