201002099 has 4 divisors (see below), whose sum is σ = 201648720. Its totient is φ = 200355480.

The previous prime is 201002063. The next prime is 201002111. The reversal of 201002099 is 990200102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201002099 - 2¹² = 200998003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201002899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322844 + ... + 323465.

It is an arithmetic number, because the mean of its divisors is an integer number (50412180).

Almost surely, 2^201002099 is an apocalyptic number.

201002099 is a deficient number, since it is larger than the sum of its proper divisors (646621).

201002099 is an equidigital number, since it uses as much as digits as its factorization.

201002099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646620.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 201002099 is about 14177.5209045870. The cubic root of 201002099 is about 585.7786393045.

The spelling of 201002099 in words is "two hundred one million, two thousand, ninety-nine".