20213313203 has 2 divisors, whose sum is σ = 20213313204. Its totient is φ = 20213313202.

The previous prime is 20213313179. The next prime is 20213313209. The reversal of 20213313203 is 30231331202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20213313203 - 2¹⁸ = 20213051059 is a prime.

It is not a weakly prime, because it can be changed into another prime (20213313209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106656601 + 10106656602.

It is an arithmetic number, because the mean of its divisors is an integer number (10106656602).

Almost surely, 2^20213313203 is an apocalyptic number.

20213313203 is a deficient number, since it is larger than the sum of its proper divisors (1).

20213313203 is an equidigital number, since it uses as much as digits as its factorization.

20213313203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20213313203 its reverse (30231331202), we get a palindrome (50444644405).

The spelling of 20213313203 in words is "twenty billion, two hundred thirteen million, three hundred thirteen thousand, two hundred three".