20313320303 has 2 divisors, whose sum is σ = 20313320304. Its totient is φ = 20313320302.

The previous prime is 20313320243. The next prime is 20313320327. The reversal of 20313320303 is 30302331302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20313320303 - 2⁶ = 20313320239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20313320003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10156660151 + 10156660152.

It is an arithmetic number, because the mean of its divisors is an integer number (10156660152).

Almost surely, 2^20313320303 is an apocalyptic number.

20313320303 is a deficient number, since it is larger than the sum of its proper divisors (1).

20313320303 is an equidigital number, since it uses as much as digits as its factorization.

20313320303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 20313320303 its reverse (30302331302), we get a palindrome (50615651605).

The spelling of 20313320303 in words is "twenty billion, three hundred thirteen million, three hundred twenty thousand, three hundred three".