12421240045305 has 64 divisors (see below), whose sum is σ = 24461581659648. Its totient is φ = 5241213112320.

The previous prime is 12421240045297. The next prime is 12421240045433. The reversal of 12421240045305 is 50354004212421.

It is not a de Polignac number, because 12421240045305 - 2³ = 12421240045297 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26682945 + ... + 27144465.

It is an arithmetic number, because the mean of its divisors is an integer number (382212213432).

Almost surely, 2^{12421240045305} is an apocalyptic number.

12421240045305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12421240045305 is a deficient number, since it is larger than the sum of its proper divisors (12040341614343).

12421240045305 is a wasteful number, since it uses less digits than its factorization.

12421240045305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481266.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 12421240045305 its reverse (50354004212421), we get a palindrome (62775244257726).

The spelling of 12421240045305 in words is "twelve trillion, four hundred twenty-one billion, two hundred forty million, forty-five thousand, three hundred five".