10421144321 has 8 divisors (see below), whose sum is σ = 11910749184. Its totient is φ = 8931756960.

The previous prime is 10421144311. The next prime is 10421144333. The reversal of 10421144321 is 12344112401.

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

It is not a de Polignac number, because 10421144321 - 2³⁰ = 9347402497 is a prime.

It is a super-2 number, since 2×10421144321² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10421144311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66101 + ... + 158781.

It is an arithmetic number, because the mean of its divisors is an integer number (1488843648).

Almost surely, 2^10421144321 is an apocalyptic number.

It is an amenable number.

10421144321 is a deficient number, since it is larger than the sum of its proper divisors (1489604863).

10421144321 is an equidigital number, since it uses as much as digits as its factorization.

10421144321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108751.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 10421144321 its reverse (12344112401), we get a palindrome (22765256722).

The spelling of 10421144321 in words is "ten billion, four hundred twenty-one million, one hundred forty-four thousand, three hundred twenty-one".