11301230221 has 4 divisors (see below), whose sum is σ = 11359786012. Its totient is φ = 11242674432.

The previous prime is 11301230183. The next prime is 11301230249. The reversal of 11301230221 is 12203210311.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4099840900 + 7201389321 = 64030^2 + 84861^2 .

It is a cyclic number.

It is not a de Polignac number, because 11301230221 - 2⁷ = 11301230093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11301230195 and 11301230204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11301230261) 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, 29277606 + ... + 29277991.

It is an arithmetic number, because the mean of its divisors is an integer number (2839946503).

Almost surely, 2^11301230221 is an apocalyptic number.

It is an amenable number.

11301230221 is a deficient number, since it is larger than the sum of its proper divisors (58555791).

11301230221 is an equidigital number, since it uses as much as digits as its factorization.

11301230221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58555790.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11301230221 its reverse (12203210311), we get a palindrome (23504440532).

The spelling of 11301230221 in words is "eleven billion, three hundred one million, two hundred thirty thousand, two hundred twenty-one".