20021303232971 has 2 divisors, whose sum is σ = 20021303232972. Its totient is φ = 20021303232970.

The previous prime is 20021303232947. The next prime is 20021303233069. The reversal of 20021303232971 is 17923230312002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20021303232971 - 2³⁰ = 20020229491147 is a prime.

It is not a weakly prime, because it can be changed into another prime (20021303232871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010651616485 + 10010651616486.

It is an arithmetic number, because the mean of its divisors is an integer number (10010651616486).

Almost surely, 2^{20021303232971} is an apocalyptic number.

20021303232971 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021303232971 is an equidigital number, since it uses as much as digits as its factorization.

20021303232971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 35.

Adding to 20021303232971 its reverse (17923230312002), we get a palindrome (37944533544973).

The spelling of 20021303232971 in words is "twenty trillion, twenty-one billion, three hundred three million, two hundred thirty-two thousand, nine hundred seventy-one".