21303682070 has 32 divisors (see below), whose sum is σ = 41840097696. Its totient is φ = 7745420800.

The previous prime is 21303682069. The next prime is 21303682079. The reversal of 21303682070 is 7028630312.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21303682079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 769712 + ... + 796908.

It is an arithmetic number, because the mean of its divisors is an integer number (1307503053).

Almost surely, 2^21303682070 is an apocalyptic number.

21303682070 is a deficient number, since it is larger than the sum of its proper divisors (20536415626).

21303682070 is a wasteful number, since it uses less digits than its factorization.

21303682070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34336.

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 21303682070 in words is "twenty-one billion, three hundred three million, six hundred eighty-two thousand, seventy".