10321321303 has 4 divisors (see below), whose sum is σ = 10864548760. Its totient is φ = 9778093848.

The previous prime is 10321321301. The next prime is 10321321313. The reversal of 10321321303 is 30312312301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30312312301 = 659 ⋅45997439.

It is a cyclic number.

It is not a de Polignac number, because 10321321303 - 2¹ = 10321321301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 543227437 = 10321321303 / (1 + 0 + 3 + 2 + 1 + 3 + 2 + 1 + 3 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10321321301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271613700 + ... + 271613737.

It is an arithmetic number, because the mean of its divisors is an integer number (2716137190).

Almost surely, 2^10321321303 is an apocalyptic number.

10321321303 is a deficient number, since it is larger than the sum of its proper divisors (543227457).

10321321303 is an equidigital number, since it uses as much as digits as its factorization.

10321321303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543227456.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 10321321303 its reverse (30312312301), we get a palindrome (40633633604).

The spelling of 10321321303 in words is "ten billion, three hundred twenty-one million, three hundred twenty-one thousand, three hundred three".