340297123 has 2 divisors, whose sum is σ = 340297124. Its totient is φ = 340297122.

The previous prime is 340297117. The next prime is 340297147. The reversal of 340297123 is 321792043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340297123 - 2⁹ = 340296611 is a prime.

It is not a weakly prime, because it can be changed into another prime (340297183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170148561 + 170148562.

It is an arithmetic number, because the mean of its divisors is an integer number (170148562).

Almost surely, 2^340297123 is an apocalyptic number.

340297123 is a deficient number, since it is larger than the sum of its proper divisors (1).

340297123 is an equidigital number, since it uses as much as digits as its factorization.

340297123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 340297123 is about 18447.1440336980. The cubic root of 340297123 is about 698.1564572112.

The spelling of 340297123 in words is "three hundred forty million, two hundred ninety-seven thousand, one hundred twenty-three".