12642450213 has 4 divisors (see below), whose sum is σ = 16856600288. Its totient is φ = 8428300140.

The previous prime is 12642450173. The next prime is 12642450217. The reversal of 12642450213 is 31205424621.

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 de Polignac number, because none of the positive numbers 2^k-12642450213 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 (12642450217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2107075033 + ... + 2107075038.

It is an arithmetic number, because the mean of its divisors is an integer number (4214150072).

Almost surely, 2^12642450213 is an apocalyptic number.

It is an amenable number.

12642450213 is a deficient number, since it is larger than the sum of its proper divisors (4214150075).

12642450213 is an equidigital number, since it uses as much as digits as its factorization.

12642450213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214150074.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 12642450213 its reverse (31205424621), we get a palindrome (43847874834).

The spelling of 12642450213 in words is "twelve billion, six hundred forty-two million, four hundred fifty thousand, two hundred thirteen".