340641133423 has 4 divisors (see below), whose sum is σ = 343323347200. Its totient is φ = 337958919648.

The previous prime is 340641133409. The next prime is 340641133487. The reversal of 340641133423 is 324331146043.

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-340641133423 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 (340641133523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1341106698 + ... + 1341106951.

It is an arithmetic number, because the mean of its divisors is an integer number (85830836800).

Almost surely, 2^340641133423 is an apocalyptic number.

340641133423 is a deficient number, since it is larger than the sum of its proper divisors (2682213777).

340641133423 is a wasteful number, since it uses less digits than its factorization.

340641133423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682213776.

The product of its (nonzero) digits is 62208, while the sum is 34.

Adding to 340641133423 its reverse (324331146043), we get a palindrome (664972279466).

The spelling of 340641133423 in words is "three hundred forty billion, six hundred forty-one million, one hundred thirty-three thousand, four hundred twenty-three".