21300604502 has 4 divisors (see below), whose sum is σ = 31950906756. Its totient is φ = 10650302250.

The previous prime is 21300604489. The next prime is 21300604511. The reversal of 21300604502 is 20540600312.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5325151124 + ... + 5325151127.

It is an arithmetic number, because the mean of its divisors is an integer number (7987726689).

Almost surely, 2^21300604502 is an apocalyptic number.

21300604502 is a deficient number, since it is larger than the sum of its proper divisors (10650302254).

21300604502 is a wasteful number, since it uses less digits than its factorization.

21300604502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10650302253.

The product of its (nonzero) digits is 1440, while the sum is 23.

The spelling of 21300604502 in words is "twenty-one billion, three hundred million, six hundred four thousand, five hundred two".