20330008121 has 2 divisors, whose sum is σ = 20330008122. Its totient is φ = 20330008120.

The previous prime is 20330008117. The next prime is 20330008129. The reversal of 20330008121 is 12180003302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15546349225 + 4783658896 = 124685^2 + 69164^2 .

It is a cyclic number.

It is not a de Polignac number, because 20330008121 - 2² = 20330008117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20330008093 and 20330008102.

It is not a weakly prime, because it can be changed into another prime (20330008129) 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, 10165004060 + 10165004061.

It is an arithmetic number, because the mean of its divisors is an integer number (10165004061).

Almost surely, 2^20330008121 is an apocalyptic number.

It is an amenable number.

20330008121 is a deficient number, since it is larger than the sum of its proper divisors (1).

20330008121 is an equidigital number, since it uses as much as digits as its factorization.

20330008121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The spelling of 20330008121 in words is "twenty billion, three hundred thirty million, eight thousand, one hundred twenty-one".