20641372203 has 4 divisors (see below), whose sum is σ = 27521829608. Its totient is φ = 13760914800.

The previous prime is 20641372201. The next prime is 20641372229. The reversal of 20641372203 is 30227314602.

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

It is not a de Polignac number, because 20641372203 - 2¹ = 20641372201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20641372201) 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, 3440228698 + ... + 3440228703.

It is an arithmetic number, because the mean of its divisors is an integer number (6880457402).

Almost surely, 2^20641372203 is an apocalyptic number.

20641372203 is a deficient number, since it is larger than the sum of its proper divisors (6880457405).

20641372203 is an equidigital number, since it uses as much as digits as its factorization.

20641372203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6880457404.

The product of its (nonzero) digits is 12096, while the sum is 30.

Adding to 20641372203 its reverse (30227314602), we get a palindrome (50868686805).

The spelling of 20641372203 in words is "twenty billion, six hundred forty-one million, three hundred seventy-two thousand, two hundred three".