130211971 has 2 divisors, whose sum is σ = 130211972. Its totient is φ = 130211970.

The previous prime is 130211969. The next prime is 130211999. The reversal of 130211971 is 179112031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130211971 - 2¹ = 130211969 is a prime.

Together with 130211969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (130211771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65105985 + 65105986.

It is an arithmetic number, because the mean of its divisors is an integer number (65105986).

Almost surely, 2^130211971 is an apocalyptic number.

130211971 is a deficient number, since it is larger than the sum of its proper divisors (1).

130211971 is an equidigital number, since it uses as much as digits as its factorization.

130211971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 25.

The square root of 130211971 is about 11411.0460081449. The cubic root of 130211971 is about 506.8548862588.

The spelling of 130211971 in words is "one hundred thirty million, two hundred eleven thousand, nine hundred seventy-one".