11102321 has 2 divisors, whose sum is σ = 11102322. Its totient is φ = 11102320.

The previous prime is 11102303. The next prime is 11102323. The reversal of 11102321 is 12320111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10627600 + 474721 = 3260^2 + 689^2 .

It is a cyclic number.

It is not a de Polignac number, because 11102321 - 2²² = 6908017 is a prime.

Together with 11102323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11102323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551160 + 5551161.

It is an arithmetic number, because the mean of its divisors is an integer number (5551161).

Almost surely, 2^11102321 is an apocalyptic number.

It is an amenable number.

11102321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11102321 is an equidigital number, since it uses as much as digits as its factorization.

11102321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 11102321 is about 3332.0145557905. The cubic root of 11102321 is about 223.0854572698.

Adding to 11102321 its reverse (12320111), we get a palindrome (23422432).

The spelling of 11102321 in words is "eleven million, one hundred two thousand, three hundred twenty-one".