10420023203 has 4 divisors (see below), whose sum is σ = 10662349368. Its totient is φ = 10177697040.

The previous prime is 10420023191. The next prime is 10420023221. The reversal of 10420023203 is 30232002401.

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 10420023203 - 2⁸ = 10420022947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10420023253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121163018 + ... + 121163103.

It is an arithmetic number, because the mean of its divisors is an integer number (2665587342).

Almost surely, 2^10420023203 is an apocalyptic number.

10420023203 is a deficient number, since it is larger than the sum of its proper divisors (242326165).

10420023203 is an equidigital number, since it uses as much as digits as its factorization.

10420023203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242326164.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 10420023203 its reverse (30232002401), we get a palindrome (40652025604).

The spelling of 10420023203 in words is "ten billion, four hundred twenty million, twenty-three thousand, two hundred three".