1111320443 has 2 divisors, whose sum is σ = 1111320444. Its totient is φ = 1111320442.

The previous prime is 1111320403. The next prime is 1111320503. The reversal of 1111320443 is 3440231111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111320443 - 2²⁰ = 1110271867 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111320403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555660221 + 555660222.

It is an arithmetic number, because the mean of its divisors is an integer number (555660222).

Almost surely, 2^1111320443 is an apocalyptic number.

1111320443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111320443 is an equidigital number, since it uses as much as digits as its factorization.

1111320443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1111320443 is about 33336.4731637886. The cubic root of 1111320443 is about 1035.8092088519.

Adding to 1111320443 its reverse (3440231111), we get a palindrome (4551551554).

The spelling of 1111320443 in words is "one billion, one hundred eleven million, three hundred twenty thousand, four hundred forty-three".