201100003 has 4 divisors (see below), whose sum is σ = 216569248. Its totient is φ = 185630760.

The previous prime is 201100001. The next prime is 201100013. The reversal of 201100003 is 300001102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300001102 = 2 ⋅150000551.

It is a cyclic number.

It is not a de Polignac number, because 201100003 - 2¹ = 201100001 is a prime.

It is a super-2 number, since 2×201100003² = 80882422413200018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201100001) 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, 7734603 + ... + 7734628.

It is an arithmetic number, because the mean of its divisors is an integer number (54142312).

Almost surely, 2^201100003 is an apocalyptic number.

201100003 is a deficient number, since it is larger than the sum of its proper divisors (15469245).

201100003 is a wasteful number, since it uses less digits than its factorization.

201100003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15469244.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 201100003 is about 14180.9732740740. The cubic root of 201100003 is about 585.8737307876.

Adding to 201100003 its reverse (300001102), we get a palindrome (501101105).

The spelling of 201100003 in words is "two hundred one million, one hundred thousand, three".