42403124331321 has 64 divisors (see below), whose sum is σ = 66303751584000. Its totient is φ = 23877149331456.

The previous prime is 42403124331317. The next prime is 42403124331361. The reversal of 42403124331321 is 12313342130424.

42403124331321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42403124331321 - 2² = 42403124331317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42403124331361) 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 63 ways as a sum of consecutive naturals, for example, 1888396 + ... + 9400653.

It is an arithmetic number, because the mean of its divisors is an integer number (1035996118500).

Almost surely, 2^{42403124331321} is an apocalyptic number.

It is an amenable number.

42403124331321 is a deficient number, since it is larger than the sum of its proper divisors (23900627252679).

42403124331321 is a wasteful number, since it uses less digits than its factorization.

42403124331321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11289258.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 42403124331321 its reverse (12313342130424), we get a palindrome (54716466461745).

The spelling of 42403124331321 in words is "forty-two trillion, four hundred three billion, one hundred twenty-four million, three hundred thirty-one thousand, three hundred twenty-one".