20333006971 has 2 divisors, whose sum is σ = 20333006972. Its totient is φ = 20333006970.

The previous prime is 20333006929. The next prime is 20333006987. The reversal of 20333006971 is 17960033302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20333006971 is a prime.

It is not a weakly prime, because it can be changed into another prime (20333006371) 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, 10166503485 + 10166503486.

It is an arithmetic number, because the mean of its divisors is an integer number (10166503486).

Almost surely, 2^20333006971 is an apocalyptic number.

20333006971 is a deficient number, since it is larger than the sum of its proper divisors (1).

20333006971 is an equidigital number, since it uses as much as digits as its factorization.

20333006971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 34.

The spelling of 20333006971 in words is "twenty billion, three hundred thirty-three million, six thousand, nine hundred seventy-one".