2012109971 has 2 divisors, whose sum is σ = 2012109972. Its totient is φ = 2012109970.

The previous prime is 2012109961. The next prime is 2012110003. The reversal of 2012109971 is 1799012102.

It is an a-pointer prime, because the next prime (2012110003) can be obtained adding 2012109971 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2012109971 - 2³⁰ = 938368147 is a prime.

It is not a weakly prime, because it can be changed into another prime (2012109941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006054985 + 1006054986.

It is an arithmetic number, because the mean of its divisors is an integer number (1006054986).

Almost surely, 2^2012109971 is an apocalyptic number.

2012109971 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012109971 is an equidigital number, since it uses as much as digits as its factorization.

2012109971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 32.

The square root of 2012109971 is about 44856.5488083959. The cubic root of 2012109971 is about 1262.4588691760.

The spelling of 2012109971 in words is "two billion, twelve million, one hundred nine thousand, nine hundred seventy-one".