21703252703 has 8 divisors (see below), whose sum is σ = 23692746240. Its totient is φ = 19716504280.

The previous prime is 21703252687. The next prime is 21703252723. The reversal of 21703252703 is 30725230712.

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

It is not a de Polignac number, because 21703252703 - 2⁴ = 21703252687 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21703252703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21703252723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669725 + ... + 701382.

It is an arithmetic number, because the mean of its divisors is an integer number (2961593280).

Almost surely, 2^21703252703 is an apocalyptic number.

21703252703 is a deficient number, since it is larger than the sum of its proper divisors (1989493537).

21703252703 is a wasteful number, since it uses less digits than its factorization.

21703252703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372557.

The product of its (nonzero) digits is 17640, while the sum is 32.

The spelling of 21703252703 in words is "twenty-one billion, seven hundred three million, two hundred fifty-two thousand, seven hundred three".