10203000203 has 4 divisors (see below), whose sum is σ = 11130545688. Its totient is φ = 9275454720.

The previous prime is 10203000191. The next prime is 10203000221. The reversal of 10203000203 is 30200030201.

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 10203000203 - 2⁴ = 10203000187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (11), and also a Moran number because the ratio is a prime number: 927545473 = 10203000203 / (1 + 0 + 2 + 0 + 3 + 0 + 0 + 0 + 2 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10203000233) 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, 463772726 + ... + 463772747.

It is an arithmetic number, because the mean of its divisors is an integer number (2782636422).

Almost surely, 2^10203000203 is an apocalyptic number.

10203000203 is a deficient number, since it is larger than the sum of its proper divisors (927545485).

10203000203 is an equidigital number, since it uses as much as digits as its factorization.

10203000203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927545484.

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 10203000203 its reverse (30200030201), we get a palindrome (40403030404).

The spelling of 10203000203 in words is "ten billion, two hundred three million, two hundred three", and thus it is an aban number.