20303701 has 4 divisors (see below), whose sum is σ = 22149504. Its totient is φ = 18457900.

The previous prime is 20303681. The next prime is 20303707. The reversal of 20303701 is 10730302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20303701 - 2⁷ = 20303573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 922885 + ... + 922906.

It is an arithmetic number, because the mean of its divisors is an integer number (5537376).

Almost surely, 2^20303701 is an apocalyptic number.

It is an amenable number.

20303701 is a deficient number, since it is larger than the sum of its proper divisors (1845803).

20303701 is a wasteful number, since it uses less digits than its factorization.

20303701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845802.

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 20303701 is about 4505.9628271880. The cubic root of 20303701 is about 272.8088174711.

The spelling of 20303701 in words is "twenty million, three hundred three thousand, seven hundred one".