11302303221 has 32 divisors (see below), whose sum is σ = 18325232640. Its totient is φ = 6827799600.

The previous prime is 11302303217. The next prime is 11302303241. The reversal of 11302303221 is 12230320311.

11302303221 is a `hidden beast` number, since 11 + 302 + 30 + 322 + 1 = 666.

It is not a de Polignac number, because 11302303221 - 2² = 11302303217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11302303194 and 11302303203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11302303211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31186 + ... + 153548.

It is an arithmetic number, because the mean of its divisors is an integer number (572663520).

Almost surely, 2^11302303221 is an apocalyptic number.

11302303221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11302303221 is a deficient number, since it is larger than the sum of its proper divisors (7022929419).

11302303221 is a wasteful number, since it uses less digits than its factorization.

11302303221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122694 (or 122688 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 11302303221 its reverse (12230320311), we get a palindrome (23532623532).

The spelling of 11302303221 in words is "eleven billion, three hundred two million, three hundred three thousand, two hundred twenty-one".