11506222303 has 4 divisors (see below), whose sum is σ = 11701243080. Its totient is φ = 11311201528.

The previous prime is 11506222279. The next prime is 11506222307. The reversal of 11506222303 is 30322260511.

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

It is a cyclic number.

It is not a de Polignac number, because 11506222303 - 2⁹ = 11506221791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11506222307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97510300 + ... + 97510417.

It is an arithmetic number, because the mean of its divisors is an integer number (2925310770).

Almost surely, 2^11506222303 is an apocalyptic number.

11506222303 is a deficient number, since it is larger than the sum of its proper divisors (195020777).

11506222303 is an equidigital number, since it uses as much as digits as its factorization.

11506222303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195020776.

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

Adding to 11506222303 its reverse (30322260511), we get a palindrome (41828482814).

The spelling of 11506222303 in words is "eleven billion, five hundred six million, two hundred twenty-two thousand, three hundred three".