21110530502 has 8 divisors (see below), whose sum is σ = 31946024376. Its totient is φ = 10461855712.

The previous prime is 21110530499. The next prime is 21110530517. The reversal of 21110530502 is 20503501112.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46704488 + ... + 46704939.

It is an arithmetic number, because the mean of its divisors is an integer number (3993253047).

Almost surely, 2^21110530502 is an apocalyptic number.

21110530502 is a deficient number, since it is larger than the sum of its proper divisors (10835493874).

21110530502 is a wasteful number, since it uses less digits than its factorization.

21110530502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93409542.

The product of its (nonzero) digits is 300, while the sum is 20.

The spelling of 21110530502 in words is "twenty-one billion, one hundred ten million, five hundred thirty thousand, five hundred two".