201002001 has 8 divisors (see below), whose sum is σ = 268103520. Its totient is φ = 133950912.

The previous prime is 201001951. The next prime is 201002057. The reversal of 201002001 is 100200102.

It is a happy number.

201002001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-201002001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201009001) 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, 2040 + ... + 20153.

It is an arithmetic number, because the mean of its divisors is an integer number (33512940).

Almost surely, 2^201002001 is an apocalyptic number.

It is an amenable number.

201002001 is a deficient number, since it is larger than the sum of its proper divisors (67101519).

201002001 is a wasteful number, since it uses less digits than its factorization.

201002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25215.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 201002001 is about 14177.5174484111. The cubic root of 201002001 is about 585.7785441043.

Adding to 201002001 its reverse (100200102), we get a palindrome (301202103).

The spelling of 201002001 in words is "two hundred one million, two thousand, one".