202100003 has 4 divisors (see below), whose sum is σ = 230971440. Its totient is φ = 173228568.

The previous prime is 202099993. The next prime is 202100033. The reversal of 202100003 is 300001202.

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 202100003 - 2¹⁴ = 202083619 is a prime.

It is a super-2 number, since 2×202100003² = 81688822425200018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (202100033) 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 3 ways as a sum of consecutive naturals, for example, 14435708 + ... + 14435721.

It is an arithmetic number, because the mean of its divisors is an integer number (57742860).

Almost surely, 2^202100003 is an apocalyptic number.

202100003 is a deficient number, since it is larger than the sum of its proper divisors (28871437).

202100003 is an equidigital number, since it uses as much as digits as its factorization.

202100003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28871436.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 202100003 is about 14216.1880615023. The cubic root of 202100003 is about 586.8432406184.

Adding to 202100003 its reverse (300001202), we get a palindrome (502101205).

The spelling of 202100003 in words is "two hundred two million, one hundred thousand, three".