1113344431 has 2 divisors, whose sum is σ = 1113344432. Its totient is φ = 1113344430.

The previous prime is 1113344429. The next prime is 1113344437. The reversal of 1113344431 is 1344433111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1113344431 - 2¹ = 1113344429 is a prime.

It is a super-2 number, since 2×1113344431² = 2479071644077427522, which contains 22 as substring.

Together with 1113344429, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1113344396 and 1113344405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113344437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556672215 + 556672216.

It is an arithmetic number, because the mean of its divisors is an integer number (556672216).

Almost surely, 2^1113344431 is an apocalyptic number.

1113344431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113344431 is an equidigital number, since it uses as much as digits as its factorization.

1113344431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 25.

The square root of 1113344431 is about 33366.8163150157. The cubic root of 1113344431 is about 1036.4376486453.

Adding to 1113344431 its reverse (1344433111), we get a palindrome (2457777542).

The spelling of 1113344431 in words is "one billion, one hundred thirteen million, three hundred forty-four thousand, four hundred thirty-one".