12420500653 has 4 divisors (see below), whose sum is σ = 13549637088. Its totient is φ = 11291364220.

The previous prime is 12420500563. The next prime is 12420500671. The reversal of 12420500653 is 35600502421.

12420500653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12420500653 - 2²⁹ = 11883629741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420500153) 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 3 ways as a sum of consecutive naturals, for example, 564568201 + ... + 564568222.

It is an arithmetic number, because the mean of its divisors is an integer number (3387409272).

Almost surely, 2^12420500653 is an apocalyptic number.

It is an amenable number.

12420500653 is a deficient number, since it is larger than the sum of its proper divisors (1129136435).

12420500653 is a wasteful number, since it uses less digits than its factorization.

12420500653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129136434.

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 12420500653 in words is "twelve billion, four hundred twenty million, five hundred thousand, six hundred fifty-three".