10503443321 has 8 divisors (see below), whose sum is σ = 12031282560. Its totient is φ = 8982440928.

The previous prime is 10503443311. The next prime is 10503443323. The reversal of 10503443321 is 12334430501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10503443321 is a prime.

It is a super-2 number, since 2×10503443321² (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 (10503443323) 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, 1705916 + ... + 1712061.

It is an arithmetic number, because the mean of its divisors is an integer number (1503910320).

Almost surely, 2^10503443321 is an apocalyptic number.

It is an amenable number.

10503443321 is a deficient number, since it is larger than the sum of its proper divisors (1527839239).

10503443321 is an equidigital number, since it uses as much as digits as its factorization.

10503443321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3418423.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 10503443321 its reverse (12334430501), we get a palindrome (22837873822).

The spelling of 10503443321 in words is "ten billion, five hundred three million, four hundred forty-three thousand, three hundred twenty-one".