20303703 has 20 divisors (see below), whose sum is σ = 34664080. Its totient is φ = 11601792.

The previous prime is 20303681. The next prime is 20303707. The reversal of 20303703 is 30730302.

It is not a de Polignac number, because 20303703 - 2⁸ = 20303447 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 19 ways as a sum of consecutive naturals, for example, 17338 + ... + 18471.

It is an arithmetic number, because the mean of its divisors is an integer number (1733204).

Almost surely, 2^20303703 is an apocalyptic number.

20303703 is a deficient number, since it is larger than the sum of its proper divisors (14360377).

20303703 is an equidigital number, since it uses as much as digits as its factorization.

20303703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35828 (or 35819 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 18.

The square root of 20303703 is about 4505.9630491161. The cubic root of 20303703 is about 272.8088264287.

The spelling of 20303703 in words is "twenty million, three hundred three thousand, seven hundred three".