340043124421 has 16 divisors (see below), whose sum is σ = 456561399168. Its totient is φ = 244586462400.

The previous prime is 340043124419. The next prime is 340043124481. The reversal of 340043124421 is 124421340043.

It is not a de Polignac number, because 340043124421 - 2¹ = 340043124419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340043124421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340043124401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169850710 + ... + 169852711.

It is an arithmetic number, because the mean of its divisors is an integer number (28535087448).

Almost surely, 2^340043124421 is an apocalyptic number.

It is an amenable number.

340043124421 is a deficient number, since it is larger than the sum of its proper divisors (116518274747).

340043124421 is a wasteful number, since it uses less digits than its factorization.

340043124421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339703452.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 340043124421 its reverse (124421340043), we get a palindrome (464464464464).

It can be divided in two parts, 340043 and 124421, that added together give a palindrome (464464).

The spelling of 340043124421 in words is "three hundred forty billion, forty-three million, one hundred twenty-four thousand, four hundred twenty-one".