20033313101 has 2 divisors, whose sum is σ = 20033313102. Its totient is φ = 20033313100.

The previous prime is 20033313023. The next prime is 20033313103. The reversal of 20033313101 is 10131333002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14191003876 + 5842309225 = 119126^2 + 76435^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20033313101 is a prime.

Together with 20033313103, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20033313101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20033313103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10016656550 + 10016656551.

It is an arithmetic number, because the mean of its divisors is an integer number (10016656551).

Almost surely, 2^20033313101 is an apocalyptic number.

It is an amenable number.

20033313101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20033313101 is an equidigital number, since it uses as much as digits as its factorization.

20033313101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 20033313101 its reverse (10131333002), we get a palindrome (30164646103).

The spelling of 20033313101 in words is "twenty billion, thirty-three million, three hundred thirteen thousand, one hundred one".