203002101 has 12 divisors (see below), whose sum is σ = 293480928. Its totient is φ = 135216744.

The previous prime is 203002081. The next prime is 203002153. The reversal of 203002101 is 101200302.

It is a happy number.

It is not a de Polignac number, because 203002101 - 2⁵ = 203002069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203002201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1786 + ... + 20228.

It is an arithmetic number, because the mean of its divisors is an integer number (24456744).

Almost surely, 2^203002101 is an apocalyptic number.

It is an amenable number.

203002101 is a deficient number, since it is larger than the sum of its proper divisors (90478827).

203002101 is a wasteful number, since it uses less digits than its factorization.

203002101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19672 (or 19669 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 203002101 is about 14247.8805792300. The cubic root of 203002101 is about 587.7150934759.

Adding to 203002101 its reverse (101200302), we get a palindrome (304202403).

The spelling of 203002101 in words is "two hundred three million, two thousand, one hundred one".