10202003 has 4 divisors (see below), whose sum is σ = 11659440. Its totient is φ = 8744568.

The previous prime is 10201987. The next prime is 10202009. The reversal of 10202003 is 30020201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30020201 = 2797 ⋅10733.

It is not a de Polignac number, because 10202003 - 2⁴ = 10201987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10202009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728708 + ... + 728721.

It is an arithmetic number, because the mean of its divisors is an integer number (2914860).

Almost surely, 2^10202003 is an apocalyptic number.

10202003 is a deficient number, since it is larger than the sum of its proper divisors (1457437).

10202003 is an equidigital number, since it uses as much as digits as its factorization.

10202003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457436.

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

The square root of 10202003 is about 3194.0574509548. The cubic root of 10202003 is about 216.8844833864.

Adding to 10202003 its reverse (30020201), we get a palindrome (40222204).

The spelling of 10202003 in words is "ten million, two hundred two thousand, three".