340102423 has 2 divisors, whose sum is σ = 340102424. Its totient is φ = 340102422.

The previous prime is 340102417. The next prime is 340102453. The reversal of 340102423 is 324201043.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340102423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340102423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340102453) 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 as a sum of consecutive naturals, namely, 170051211 + 170051212.

It is an arithmetic number, because the mean of its divisors is an integer number (170051212).

Almost surely, 2^340102423 is an apocalyptic number.

340102423 is a deficient number, since it is larger than the sum of its proper divisors (1).

340102423 is an equidigital number, since it uses as much as digits as its factorization.

340102423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 340102423 is about 18441.8660389886. The cubic root of 340102423 is about 698.0232824203.

Adding to 340102423 its reverse (324201043), we get a palindrome (664303466).

The spelling of 340102423 in words is "three hundred forty million, one hundred two thousand, four hundred twenty-three".