1113344391 has 4 divisors (see below), whose sum is σ = 1484459192. Its totient is φ = 742229592.

The previous prime is 1113344359. The next prime is 1113344429. The reversal of 1113344391 is 1934433111.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1113344391 - 2⁵ = 1113344359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113344891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185557396 + ... + 185557401.

It is an arithmetic number, because the mean of its divisors is an integer number (371114798).

Almost surely, 2^1113344391 is an apocalyptic number.

1113344391 is a deficient number, since it is larger than the sum of its proper divisors (371114801).

1113344391 is an equidigital number, since it uses as much as digits as its factorization.

1113344391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371114800.

The product of its digits is 3888, while the sum is 30.

The square root of 1113344391 is about 33366.8157156178. The cubic root of 1113344391 is about 1036.4376362330.

The spelling of 1113344391 in words is "one billion, one hundred thirteen million, three hundred forty-four thousand, three hundred ninety-one".