340355322431 has 4 divisors (see below), whose sum is σ = 355153379952. Its totient is φ = 325557264912.

The previous prime is 340355322397. The next prime is 340355322467. The reversal of 340355322431 is 134223553043.

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 340355322431 - 2²⁶ = 340288213567 is a prime.

It is a super-2 number, since 2×340355322431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340355322391 and 340355322400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340355322031) 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, 7399028726 + ... + 7399028771.

It is an arithmetic number, because the mean of its divisors is an integer number (88788344988).

Almost surely, 2^340355322431 is an apocalyptic number.

340355322431 is a deficient number, since it is larger than the sum of its proper divisors (14798057521).

340355322431 is a wasteful number, since it uses less digits than its factorization.

340355322431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14798057520.

The product of its (nonzero) digits is 129600, while the sum is 35.

Adding to 340355322431 its reverse (134223553043), we get a palindrome (474578875474).

The spelling of 340355322431 in words is "three hundred forty billion, three hundred fifty-five million, three hundred twenty-two thousand, four hundred thirty-one".