21313898306 has 8 divisors (see below), whose sum is σ = 32651078400. Its totient is φ = 10430205508.

The previous prime is 21313898233. The next prime is 21313898311. The reversal of 21313898306 is 60389831312.

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

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, 113371706 + ... + 113371893.

It is an arithmetic number, because the mean of its divisors is an integer number (4081384800).

Almost surely, 2^21313898306 is an apocalyptic number.

21313898306 is a deficient number, since it is larger than the sum of its proper divisors (11337180094).

21313898306 is a wasteful number, since it uses less digits than its factorization.

21313898306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226743648.

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 21313898306 in words is "twenty-one billion, three hundred thirteen million, eight hundred ninety-eight thousand, three hundred six".