1113221939 has 2 divisors, whose sum is σ = 1113221940. Its totient is φ = 1113221938.

The previous prime is 1113221933. The next prime is 1113221947. The reversal of 1113221939 is 9391223111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113221939 is a prime.

It is not a weakly prime, because it can be changed into another prime (1113221933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556610969 + 556610970.

It is an arithmetic number, because the mean of its divisors is an integer number (556610970).

Almost surely, 2^1113221939 is an apocalyptic number.

1113221939 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113221939 is an equidigital number, since it uses as much as digits as its factorization.

1113221939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 32.

The square root of 1113221939 is about 33364.9807283025. The cubic root of 1113221939 is about 1036.3996370551.

The spelling of 1113221939 in words is "one billion, one hundred thirteen million, two hundred twenty-one thousand, nine hundred thirty-nine".