202102110020971 has 2 divisors, whose sum is σ = 202102110020972. Its totient is φ = 202102110020970.

The previous prime is 202102110020947. The next prime is 202102110021029. The reversal of 202102110020971 is 179020011201202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202102110020971 - 2⁵ = 202102110020939 is a prime.

It is not a weakly prime, because it can be changed into another prime (202102110020911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101051055010485 + 101051055010486.

It is an arithmetic number, because the mean of its divisors is an integer number (101051055010486).

Almost surely, 2^{202102110020971} is an apocalyptic number.

202102110020971 is a deficient number, since it is larger than the sum of its proper divisors (1).

202102110020971 is an equidigital number, since it uses as much as digits as its factorization.

202102110020971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 202102110020971 in words is "two hundred two trillion, one hundred two billion, one hundred ten million, twenty thousand, nine hundred seventy-one".