11305502321 has 4 divisors (see below), whose sum is σ = 11305744500. Its totient is φ = 11305260144.

The previous prime is 11305502291. The next prime is 11305502381. The reversal of 11305502321 is 12320550311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12320550311 = 853 ⋅14443787.

It can be written as a sum of positive squares in 2 ways, for example, as 8274449296 + 3031053025 = 90964^2 + 55055^2 .

It is a cyclic number.

It is not a de Polignac number, because 11305502321 - 2²⁶ = 11238393457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11305502381) 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, 26366 + ... + 152663.

It is an arithmetic number, because the mean of its divisors is an integer number (2826436125).

Almost surely, 2^11305502321 is an apocalyptic number.

It is an amenable number.

11305502321 is a deficient number, since it is larger than the sum of its proper divisors (242179).

11305502321 is an equidigital number, since it uses as much as digits as its factorization.

11305502321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242178.

The product of its (nonzero) digits is 900, while the sum is 23.

The spelling of 11305502321 in words is "eleven billion, three hundred five million, five hundred two thousand, three hundred twenty-one".