12434444004021 has 16 divisors (see below), whose sum is σ = 17858316337344. Its totient is φ = 7650366937344.

The previous prime is 12434444003999. The next prime is 12434444004023. The reversal of 12434444004021 is 12040044443421.

It is not a de Polignac number, because 12434444004021 - 2¹⁸ = 12434443741877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12434444004023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33115156 + ... + 33488541.

It is an arithmetic number, because the mean of its divisors is an integer number (1116144771084).

Almost surely, 2^{12434444004021} is an apocalyptic number.

It is an amenable number.

12434444004021 is a deficient number, since it is larger than the sum of its proper divisors (5423872333323).

12434444004021 is a wasteful number, since it uses less digits than its factorization.

12434444004021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66608500.

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 12434444004021 its reverse (12040044443421), we get a palindrome (24474488447442).

The spelling of 12434444004021 in words is "twelve trillion, four hundred thirty-four billion, four hundred forty-four million, four thousand, twenty-one".