10443420403 has 6 divisors (see below), whose sum is σ = 11308556004. Its totient is φ = 9640080216.

The previous prime is 10443420391. The next prime is 10443420409. The reversal of 10443420403 is 30402434401.

It is not a de Polignac number, because 10443420403 - 2²⁵ = 10409865971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10443420409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30897525 + ... + 30897862.

It is an arithmetic number, because the mean of its divisors is an integer number (1884759334).

Almost surely, 2^10443420403 is an apocalyptic number.

10443420403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10443420403 is a deficient number, since it is larger than the sum of its proper divisors (865135601).

10443420403 is an equidigital number, since it uses as much as digits as its factorization.

10443420403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61795413 (or 61795400 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 10443420403 its reverse (30402434401), we get a palindrome (40845854804).

The spelling of 10443420403 in words is "ten billion, four hundred forty-three million, four hundred twenty thousand, four hundred three".