20303030101 has 2 divisors, whose sum is σ = 20303030102. Its totient is φ = 20303030100.

The previous prime is 20303030093. The next prime is 20303030107. The reversal of 20303030101 is 10103030302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11051475876 + 9251554225 = 105126^2 + 96185^2 .

It is a cyclic number.

It is not a de Polignac number, because 20303030101 - 2³ = 20303030093 is a prime.

It is a super-2 number, since 2×20303030101² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20303030107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10151515050 + 10151515051.

It is an arithmetic number, because the mean of its divisors is an integer number (10151515051).

Almost surely, 2^20303030101 is an apocalyptic number.

It is an amenable number.

20303030101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20303030101 is an equidigital number, since it uses as much as digits as its factorization.

20303030101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 20303030101 its reverse (10103030302), we get a palindrome (30406060403).

The spelling of 20303030101 in words is "twenty billion, three hundred three million, thirty thousand, one hundred one".