20203320101 has 2 divisors, whose sum is σ = 20203320102. Its totient is φ = 20203320100.

The previous prime is 20203320077. The next prime is 20203320121. The reversal of 20203320101 is 10102330202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14610523876 + 5592796225 = 120874^2 + 74785^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20203320101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20203320121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101660050 + 10101660051.

It is an arithmetic number, because the mean of its divisors is an integer number (10101660051).

Almost surely, 2^20203320101 is an apocalyptic number.

It is an amenable number.

20203320101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203320101 is an equidigital number, since it uses as much as digits as its factorization.

20203320101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20203320101 its reverse (10102330202), we get a palindrome (30305650303).

The spelling of 20203320101 in words is "twenty billion, two hundred three million, three hundred twenty thousand, one hundred one".