340423044042223 has 4 divisors (see below), whose sum is σ = 340431200469040. Its totient is φ = 340414887615408.

The previous prime is 340423044042167. The next prime is 340423044042229. The reversal of 340423044042223 is 322240440324043.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340423044042223 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 (340423044042229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4078150803 + ... + 4078234276.

It is an arithmetic number, because the mean of its divisors is an integer number (85107800117260).

Almost surely, 2^{340423044042223} is an apocalyptic number.

340423044042223 is a deficient number, since it is larger than the sum of its proper divisors (8156426817).

340423044042223 is an equidigital number, since it uses as much as digits as its factorization.

340423044042223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8156426816.

The product of its (nonzero) digits is 442368, while the sum is 37.

Adding to 340423044042223 its reverse (322240440324043), we get a palindrome (662663484366266).

The spelling of 340423044042223 in words is "three hundred forty trillion, four hundred twenty-three billion, forty-four million, forty-two thousand, two hundred twenty-three".