10421003403 has 10 divisors (see below), whose sum is σ = 15567178044. Its totient is φ = 6947335548.

The previous prime is 10421003401. The next prime is 10421003407. The reversal of 10421003403 is 30430012401.

10421003403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10421003403 - 2¹ = 10421003401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10421003401) 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 9 ways as a sum of consecutive naturals, for example, 64327101 + ... + 64327262.

Almost surely, 2^10421003403 is an apocalyptic number.

10421003403 is a deficient number, since it is larger than the sum of its proper divisors (5146174641).

10421003403 is an equidigital number, since it uses as much as digits as its factorization.

10421003403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128654375 (or 128654366 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 10421003403 its reverse (30430012401), we get a palindrome (40851015804).

The spelling of 10421003403 in words is "ten billion, four hundred twenty-one million, three thousand, four hundred three".