20303211101 has 2 divisors, whose sum is σ = 20303211102. Its totient is φ = 20303211100.

The previous prime is 20303211091. The next prime is 20303211109. The reversal of 20303211101 is 10111230302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15696331225 + 4606879876 = 125285^2 + 67874^2 .

It is a cyclic number.

It is not a de Polignac number, because 20303211101 - 2¹⁰ = 20303210077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20303211109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10151605550 + 10151605551.

It is an arithmetic number, because the mean of its divisors is an integer number (10151605551).

Almost surely, 2^20303211101 is an apocalyptic number.

It is an amenable number.

20303211101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20303211101 is an equidigital number, since it uses as much as digits as its factorization.

20303211101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20303211101 its reverse (10111230302), we get a palindrome (30414441403).

The spelling of 20303211101 in words is "twenty billion, three hundred three million, two hundred eleven thousand, one hundred one".