20123330033 has 2 divisors, whose sum is σ = 20123330034. Its totient is φ = 20123330032.

The previous prime is 20123330011. The next prime is 20123330053. The reversal of 20123330033 is 33003332102.

It is an a-pointer prime, because the next prime (20123330053) can be obtained adding 20123330033 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12962277904 + 7161052129 = 113852^2 + 84623^2 .

It is a cyclic number.

It is not a de Polignac number, because 20123330033 - 2²⁰ = 20122281457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20123329987 and 20123330014.

It is not a weakly prime, because it can be changed into another prime (20123330053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061665016 + 10061665017.

It is an arithmetic number, because the mean of its divisors is an integer number (10061665017).

Almost surely, 2^20123330033 is an apocalyptic number.

It is an amenable number.

20123330033 is a deficient number, since it is larger than the sum of its proper divisors (1).

20123330033 is an equidigital number, since it uses as much as digits as its factorization.

20123330033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 20123330033 its reverse (33003332102), we get a palindrome (53126662135).

The spelling of 20123330033 in words is "twenty billion, one hundred twenty-three million, three hundred thirty thousand, thirty-three".