201000000971 has 64 divisors (see below), whose sum is σ = 264111390720. Its totient is φ = 148318853760.

The previous prime is 201000000967. The next prime is 201000000979. The reversal of 201000000971 is 179000000102.

It is not a de Polignac number, because 201000000971 - 2² = 201000000967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201000000979) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 197251700 + ... + 197252718.

It is an arithmetic number, because the mean of its divisors is an integer number (4126740480).

Almost surely, 2^201000000971 is an apocalyptic number.

201000000971 is a deficient number, since it is larger than the sum of its proper divisors (63111389749).

201000000971 is a wasteful number, since it uses less digits than its factorization.

201000000971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064.

The product of its (nonzero) digits is 126, while the sum is 20.

The spelling of 201000000971 in words is "two hundred one billion, nine hundred seventy-one", and thus it is an aban number.