10203020203 has 16 divisors (see below), whose sum is σ = 10928421504. Its totient is φ = 9491935360.

The previous prime is 10203020183. The next prime is 10203020231. The reversal of 10203020203 is 30202030201.

It is a happy number.

10203020203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10203020203 is a prime.

It is a super-2 number, since 2×10203020203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10203020603) 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 15 ways as a sum of consecutive naturals, for example, 843468 + ... + 855478.

It is an arithmetic number, because the mean of its divisors is an integer number (683026344).

Almost surely, 2^10203020203 is an apocalyptic number.

10203020203 is a deficient number, since it is larger than the sum of its proper divisors (725401301).

10203020203 is a wasteful number, since it uses less digits than its factorization.

10203020203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12602.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 10203020203 its reverse (30202030201), we get a palindrome (40405050404).

The spelling of 10203020203 in words is "ten billion, two hundred three million, twenty thousand, two hundred three".