11230313221 has 4 divisors (see below), whose sum is σ = 11231794444. Its totient is φ = 11228832000.

The previous prime is 11230313197. The next prime is 11230313251. The reversal of 11230313221 is 12231303211.

11230313221 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, and also an emirpimes, since its reverse is a distinct semiprime: 12231303211 = 227 ⋅53882393.

It can be written as a sum of positive squares in 2 ways, for example, as 7449416100 + 3780897121 = 86310^2 + 61489^2 .

It is a cyclic number.

It is not a de Polignac number, because 11230313221 - 2⁵ = 11230313189 is a prime.

It is a super-2 number, since 2×11230313221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11230313251) 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, 729180 + ... + 744421.

It is an arithmetic number, because the mean of its divisors is an integer number (2807948611).

Almost surely, 2^11230313221 is an apocalyptic number.

It is an amenable number.

11230313221 is a deficient number, since it is larger than the sum of its proper divisors (1481223).

11230313221 is an equidigital number, since it uses as much as digits as its factorization.

11230313221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481222.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11230313221 its reverse (12231303211), we get a palindrome (23461616432).

The spelling of 11230313221 in words is "eleven billion, two hundred thirty million, three hundred thirteen thousand, two hundred twenty-one".