12521453204204 has 24 divisors (see below), whose sum is σ = 25066465175808. Its totient is φ = 5361288780240.

The previous prime is 12521453204203. The next prime is 12521453204329. The reversal of 12521453204204 is 40240235412521.

It is not an unprimeable number, because it can be changed into a prime (12521453204201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210315842 + ... + 210375369.

It is an arithmetic number, because the mean of its divisors is an integer number (1044436048992).

Almost surely, 2^{12521453204204} is an apocalyptic number.

12521453204204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12521453204204 is an abundant number, since it is smaller than the sum of its proper divisors (12545011971604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12521453204204 is a wasteful number, since it uses less digits than its factorization.

12521453204204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420692285 (or 420692283 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 12521453204204 its reverse (40240235412521), we get a palindrome (52761688616725).

The spelling of 12521453204204 in words is "twelve trillion, five hundred twenty-one billion, four hundred fifty-three million, two hundred four thousand, two hundred four".