20202504203 has 4 divisors (see below), whose sum is σ = 23088576240. Its totient is φ = 17316432168.

The previous prime is 20202504187. The next prime is 20202504211. The reversal of 20202504203 is 30240520202.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20202504203 - 2⁴ = 20202504187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20202504403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1443036008 + ... + 1443036021.

It is an arithmetic number, because the mean of its divisors is an integer number (5772144060).

Almost surely, 2^20202504203 is an apocalyptic number.

20202504203 is a deficient number, since it is larger than the sum of its proper divisors (2886072037).

20202504203 is an equidigital number, since it uses as much as digits as its factorization.

20202504203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2886072036.

The product of its (nonzero) digits is 960, while the sum is 20.

The spelling of 20202504203 in words is "twenty billion, two hundred two million, five hundred four thousand, two hundred three".