201200100989 has 8 divisors (see below), whose sum is σ = 201549223512. Its totient is φ = 200851156800.

The previous prime is 201200100967. The next prime is 201200101001. The reversal of 201200100989 is 989001002102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 110833728889 + 90366372100 = 332917^2 + 300610^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201200100989 - 2²⁰ = 201199052413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201200100919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2321927 + ... + 2407019.

It is an arithmetic number, because the mean of its divisors is an integer number (25193652939).

Almost surely, 2^201200100989 is an apocalyptic number.

It is an amenable number.

201200100989 is a deficient number, since it is larger than the sum of its proper divisors (349122523).

201200100989 is an equidigital number, since it uses as much as digits as its factorization.

201200100989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89167.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 201200100989 in words is "two hundred one billion, two hundred million, one hundred thousand, nine hundred eighty-nine".