10421442003 has 8 divisors (see below), whose sum is σ = 15880292608. Its totient is φ = 5955109704.

The previous prime is 10421441963. The next prime is 10421442007. The reversal of 10421442003 is 30024412401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10421442003 - 2⁸ = 10421441747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 496259143 = 10421442003 / (1 + 0 + 4 + 2 + 1 + 4 + 4 + 2 + 0 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10421442007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248129551 + ... + 248129592.

It is an arithmetic number, because the mean of its divisors is an integer number (1985036576).

Almost surely, 2^10421442003 is an apocalyptic number.

10421442003 is a deficient number, since it is larger than the sum of its proper divisors (5458850605).

10421442003 is an equidigital number, since it uses as much as digits as its factorization.

10421442003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496259153.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 10421442003 its reverse (30024412401), we get a palindrome (40445854404).

The spelling of 10421442003 in words is "ten billion, four hundred twenty-one million, four hundred forty-two thousand, three".