10123020203 has 4 divisors (see below), whose sum is σ = 10655810760. Its totient is φ = 9590229648.

The previous prime is 10123020197. The next prime is 10123020233. The reversal of 10123020203 is 30202032101.

It is a happy number.

10123020203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10123020203 - 2¹² = 10123016107 is a prime.

It is a super-2 number, since 2×10123020203² (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 (10123020233) 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 3 ways as a sum of consecutive naturals, for example, 266395250 + ... + 266395287.

It is an arithmetic number, because the mean of its divisors is an integer number (2663952690).

Almost surely, 2^10123020203 is an apocalyptic number.

10123020203 is a deficient number, since it is larger than the sum of its proper divisors (532790557).

10123020203 is an equidigital number, since it uses as much as digits as its factorization.

10123020203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532790556.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 10123020203 its reverse (30202032101), we get a palindrome (40325052304).

The spelling of 10123020203 in words is "ten billion, one hundred twenty-three million, twenty thousand, two hundred three".