1173820343 has 2 divisors, whose sum is σ = 1173820344. Its totient is φ = 1173820342.

The previous prime is 1173820339. The next prime is 1173820367. The reversal of 1173820343 is 3430283711.

It is a weak prime.

It is an emirp because it is prime and its reverse (3430283711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1173820343 - 2² = 1173820339 is a prime.

It is a zygodrome in base 5.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1173820313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586910171 + 586910172.

It is an arithmetic number, because the mean of its divisors is an integer number (586910172).

Almost surely, 2^1173820343 is an apocalyptic number.

1173820343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1173820343 is an equidigital number, since it uses as much as digits as its factorization.

1173820343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 1173820343 is about 34261.0616151923. The cubic root of 1173820343 is about 1054.8738925207.

The spelling of 1173820343 in words is "one billion, one hundred seventy-three million, eight hundred twenty thousand, three hundred forty-three".