340221703403 has 4 divisors (see below), whose sum is σ = 342258959280. Its totient is φ = 338184447528.

The previous prime is 340221703373. The next prime is 340221703411. The reversal of 340221703403 is 304307122043.

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

It is a cyclic number.

It is not a de Polignac number, because 340221703403 - 2²⁶ = 340154594539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340221708403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018627688 + ... + 1018628021.

It is an arithmetic number, because the mean of its divisors is an integer number (85564739820).

Almost surely, 2^340221703403 is an apocalyptic number.

340221703403 is a deficient number, since it is larger than the sum of its proper divisors (2037255877).

340221703403 is a wasteful number, since it uses less digits than its factorization.

340221703403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037255876.

The product of its (nonzero) digits is 12096, while the sum is 29.

Adding to 340221703403 its reverse (304307122043), we get a palindrome (644528825446).

The spelling of 340221703403 in words is "three hundred forty billion, two hundred twenty-one million, seven hundred three thousand, four hundred three".