421143003 has 16 divisors (see below), whose sum is σ = 634492800. Its totient is φ = 276002280.

The previous prime is 421142993. The next prime is 421143007. The reversal of 421143003 is 300341124.

It is not a de Polignac number, because 421143003 - 2⁵ = 421142971 is a prime.

It is a super-2 number, since 2×421143003² = 354722857951716018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421143007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130593 + ... + 133778.

It is an arithmetic number, because the mean of its divisors is an integer number (39655800).

Almost surely, 2^421143003 is an apocalyptic number.

421143003 is a deficient number, since it is larger than the sum of its proper divisors (213349797).

421143003 is a wasteful number, since it uses less digits than its factorization.

421143003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264439 (or 264433 counting only the distinct ones).

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

The square root of 421143003 is about 20521.7690026956. The cubic root of 421143003 is about 749.5659728757.

Adding to 421143003 its reverse (300341124), we get a palindrome (721484127).

The spelling of 421143003 in words is "four hundred twenty-one million, one hundred forty-three thousand, three".