343042520505 has 32 divisors (see below), whose sum is σ = 561698375040. Its totient is φ = 178680230400.

The previous prime is 343042520459. The next prime is 343042520507. The reversal of 343042520505 is 505025240343.

It is a happy number.

It is not a de Polignac number, because 343042520505 - 2¹⁰ = 343042519481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (343042520507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6532855 + ... + 6585155.

It is an arithmetic number, because the mean of its divisors is an integer number (17553074220).

Almost surely, 2^343042520505 is an apocalyptic number.

It is an amenable number.

343042520505 is a deficient number, since it is larger than the sum of its proper divisors (218655854535).

343042520505 is a wasteful number, since it uses less digits than its factorization.

343042520505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62521.

The product of its (nonzero) digits is 72000, while the sum is 33.

Adding to 343042520505 its reverse (505025240343), we get a palindrome (848067760848).

The spelling of 343042520505 in words is "three hundred forty-three billion, forty-two million, five hundred twenty thousand, five hundred five".