12520450353 has 8 divisors (see below), whose sum is σ = 16847089600. Its totient is φ = 8270389008.

The previous prime is 12520450301. The next prime is 12520450373. The reversal of 12520450353 is 35305402521.

12520450353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12520450353 - 2⁶ = 12520450289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12520450353.

It is not an unprimeable number, because it can be changed into a prime (12520450373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19144093 + ... + 19144746.

It is an arithmetic number, because the mean of its divisors is an integer number (2105886200).

Almost surely, 2^12520450353 is an apocalyptic number.

It is an amenable number.

12520450353 is a deficient number, since it is larger than the sum of its proper divisors (4326639247).

12520450353 is a wasteful number, since it uses less digits than its factorization.

12520450353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38288951.

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 12520450353 its reverse (35305402521), we get a palindrome (47825852874).

The spelling of 12520450353 in words is "twelve billion, five hundred twenty million, four hundred fifty thousand, three hundred fifty-three".