10202103 has 12 divisors (see below), whose sum is σ = 14986920. Its totient is φ = 6685776.

The previous prime is 10202099. The next prime is 10202117. The reversal of 10202103 is 30120201.

It is a happy number.

It is not a de Polignac number, because 10202103 - 2² = 10202099 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 (10202603) 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 11 ways as a sum of consecutive naturals, for example, 9076 + ... + 10137.

It is an arithmetic number, because the mean of its divisors is an integer number (1248910).

Almost surely, 2^10202103 is an apocalyptic number.

10202103 is a deficient number, since it is larger than the sum of its proper divisors (4784817).

10202103 is a wasteful number, since it uses less digits than its factorization.

10202103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19278 (or 19275 counting only the distinct ones).

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

The square root of 10202103 is about 3194.0731049868. The cubic root of 10202103 is about 216.8851920177.

Adding to 10202103 its reverse (30120201), we get a palindrome (40322304).

The spelling of 10202103 in words is "ten million, two hundred two thousand, one hundred three".