971011189201 has 3 divisors (see below), whose sum is σ = 971012174601. Its totient is φ = 971010203802.

The previous prime is 971011189151. The next prime is 971011189219. The reversal of 971011189201 is 102981110179.

The square root of 971011189201 is 985399.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 971011189201 - 2¹³ = 971011181009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (971011139201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 492700 + ... + 1478098.

It is an arithmetic number, because the mean of its divisors is an integer number (323670724867).

Almost surely, 2^971011189201 is an apocalyptic number.

971011189201 is the 985399-th square number.

971011189201 is the 492700-th centered octagonal number.

It is an amenable number.

971011189201 is a deficient number, since it is larger than the sum of its proper divisors (985400).

971011189201 is an frugal number, since it uses more digits than its factorization.

971011189201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970798 (or 985399 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 40.

The spelling of 971011189201 in words is "nine hundred seventy-one billion, eleven million, one hundred eighty-nine thousand, two hundred one".