4021431121424 has 20 divisors (see below), whose sum is σ = 7796720658000. Its totient is φ = 2009374177440.

The previous prime is 4021431121381. The next prime is 4021431121457. The reversal of 4021431121424 is 4241211341204.

4021431121424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83811722 + ... + 83859689.

It is an arithmetic number, because the mean of its divisors is an integer number (389836032900).

Almost surely, 2^{4021431121424} is an apocalyptic number.

It is an amenable number.

4021431121424 is a deficient number, since it is larger than the sum of its proper divisors (3775289536576).

4021431121424 is a wasteful number, since it uses less digits than its factorization.

4021431121424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167672918 (or 167672912 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 4021431121424 its reverse (4241211341204), we get a palindrome (8262642462628).

The spelling of 4021431121424 in words is "four trillion, twenty-one billion, four hundred thirty-one million, one hundred twenty-one thousand, four hundred twenty-four".