11310100321 has 4 divisors (see below), whose sum is σ = 12180108052. Its totient is φ = 10440092592.

The previous prime is 11310100309. The next prime is 11310100363. The reversal of 11310100321 is 12300101311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12300101311 = 41 ⋅300002471.

It can be written as a sum of positive squares in 2 ways, for example, as 2177622225 + 9132478096 = 46665^2 + 95564^2 .

It is a cyclic number.

It is not a de Polignac number, because 11310100321 - 2¹¹ = 11310098273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 870007717 = 11310100321 / (1 + 1 + 3 + 1 + 0 + 1 + 0 + 0 + 3 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11311100321) 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, 435003846 + ... + 435003871.

It is an arithmetic number, because the mean of its divisors is an integer number (3045027013).

Almost surely, 2^11310100321 is an apocalyptic number.

It is an amenable number.

11310100321 is a deficient number, since it is larger than the sum of its proper divisors (870007731).

11310100321 is an equidigital number, since it uses as much as digits as its factorization.

11310100321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870007730.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11310100321 its reverse (12300101311), we get a palindrome (23610201632).

The spelling of 11310100321 in words is "eleven billion, three hundred ten million, one hundred thousand, three hundred twenty-one".