20333100001 has 2 divisors, whose sum is σ = 20333100002. Its totient is φ = 20333100000.

The previous prime is 20333099999. The next prime is 20333100023. The reversal of 20333100001 is 10000133302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11114219776 + 9218880225 = 105424^2 + 96015^2 .

It is a cyclic number.

It is not a de Polignac number, because 20333100001 - 2¹ = 20333099999 is a prime.

Together with 20333099999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20333100031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166550000 + 10166550001.

It is an arithmetic number, because the mean of its divisors is an integer number (10166550001).

Almost surely, 2^20333100001 is an apocalyptic number.

It is an amenable number.

20333100001 is a deficient number, since it is larger than the sum of its proper divisors (1).

20333100001 is an equidigital number, since it uses as much as digits as its factorization.

20333100001 is an evil number, because the sum of its binary digits is even.

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

Adding to 20333100001 its reverse (10000133302), we get a palindrome (30333233303).

The spelling of 20333100001 in words is "twenty billion, three hundred thirty-three million, one hundred thousand, one".