424443135254121 has 48 divisors (see below), whose sum is σ = 644990875873344. Its totient is φ = 278894649386304.

The previous prime is 424443135254081. The next prime is 424443135254147. The reversal of 424443135254121 is 121452531344424.

424443135254121 is a `hidden beast` number, since 4 + 2 + 4 + 4 + 4 + 31 + 3 + 52 + 541 + 21 = 666.

It is not a de Polignac number, because 424443135254121 - 2⁷ = 424443135253993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (424443135234121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36309550 + ... + 46553943.

It is an arithmetic number, because the mean of its divisors is an integer number (13437309914028).

Almost surely, 2^{424443135254121} is an apocalyptic number.

It is an amenable number.

424443135254121 is a deficient number, since it is larger than the sum of its proper divisors (220547740619223).

424443135254121 is a wasteful number, since it uses less digits than its factorization.

424443135254121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82863812 (or 82863800 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 45.

Adding to 424443135254121 its reverse (121452531344424), we get a palindrome (545895666598545).

The spelling of 424443135254121 in words is "four hundred twenty-four trillion, four hundred forty-three billion, one hundred thirty-five million, two hundred fifty-four thousand, one hundred twenty-one".