211001010971 has 2 divisors, whose sum is σ = 211001010972. Its totient is φ = 211001010970.

The previous prime is 211001010949. The next prime is 211001011031. The reversal of 211001010971 is 179010100112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211001010971 - 2²⁶ = 210933902107 is a prime.

It is not a weakly prime, because it can be changed into another prime (211001010371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105500505485 + 105500505486.

It is an arithmetic number, because the mean of its divisors is an integer number (105500505486).

Almost surely, 2^211001010971 is an apocalyptic number.

211001010971 is a deficient number, since it is larger than the sum of its proper divisors (1).

211001010971 is an equidigital number, since it uses as much as digits as its factorization.

211001010971 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 23.

The spelling of 211001010971 in words is "two hundred eleven billion, one million, ten thousand, nine hundred seventy-one".