1111441321 has 2 divisors, whose sum is σ = 1111441322. Its totient is φ = 1111441320.

The previous prime is 1111441319. The next prime is 1111441337. The reversal of 1111441321 is 1231441111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 885360025 + 226081296 = 29755^2 + 15036^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111441321 - 2¹ = 1111441319 is a prime.

Together with 1111441319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1111441301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555720660 + 555720661.

It is an arithmetic number, because the mean of its divisors is an integer number (555720661).

Almost surely, 2^1111441321 is an apocalyptic number.

It is an amenable number.

1111441321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111441321 is an equidigital number, since it uses as much as digits as its factorization.

1111441321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96, while the sum is 19.

The square root of 1111441321 is about 33338.2861137162. The cubic root of 1111441321 is about 1035.8467623788.

Adding to 1111441321 its reverse (1231441111), we get a palindrome (2342882432).

The spelling of 1111441321 in words is "one billion, one hundred eleven million, four hundred forty-one thousand, three hundred twenty-one".