102101971 has 2 divisors, whose sum is σ = 102101972. Its totient is φ = 102101970.

The previous prime is 102101947. The next prime is 102102019. The reversal of 102101971 is 179101201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102101971 - 2⁵ = 102101939 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102101921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51050985 + 51050986.

It is an arithmetic number, because the mean of its divisors is an integer number (51050986).

Almost surely, 2^102101971 is an apocalyptic number.

102101971 is a deficient number, since it is larger than the sum of its proper divisors (1).

102101971 is an equidigital number, since it uses as much as digits as its factorization.

102101971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 22.

The square root of 102101971 is about 10104.5519940272. The cubic root of 102101971 is about 467.3885209898.

The spelling of 102101971 in words is "one hundred two million, one hundred one thousand, nine hundred seventy-one".