10645321003 has 4 divisors (see below), whose sum is σ = 10645531920. Its totient is φ = 10645110088.

The previous prime is 10645320997. The next prime is 10645321013. The reversal of 10645321003 is 30012354601.

10645321003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10645321003 is a prime.

It is a super-2 number, since 2×10645321003² (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 (10645321013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20001 + ... + 147277.

It is an arithmetic number, because the mean of its divisors is an integer number (2661382980).

Almost surely, 2^10645321003 is an apocalyptic number.

10645321003 is a deficient number, since it is larger than the sum of its proper divisors (210917).

10645321003 is an equidigital number, since it uses as much as digits as its factorization.

10645321003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210916.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 10645321003 its reverse (30012354601), we get a palindrome (40657675604).

The spelling of 10645321003 in words is "ten billion, six hundred forty-five million, three hundred twenty-one thousand, three".