20200903 has 2 divisors, whose sum is σ = 20200904. Its totient is φ = 20200902.

The previous prime is 20200891. The next prime is 20200937. The reversal of 20200903 is 30900202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20200903 - 2¹⁷ = 20069831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20200963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100451 + 10100452.

It is an arithmetic number, because the mean of its divisors is an integer number (10100452).

Almost surely, 2^20200903 is an apocalyptic number.

20200903 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200903 is an equidigital number, since it uses as much as digits as its factorization.

20200903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 20200903 is about 4494.5414671577. The cubic root of 20200903 is about 272.3476262852.

The spelling of 20200903 in words is "twenty million, two hundred thousand, nine hundred three".