12621242163 has 8 divisors (see below), whose sum is σ = 17408610000. Its totient is φ = 8124017888.

The previous prime is 12621242159. The next prime is 12621242167. The reversal of 12621242163 is 36124212621.

It is an interprime number because it is at equal distance from previous prime (12621242159) and next prime (12621242167).

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

It is a cyclic number.

It is not a de Polignac number, because 12621242163 - 2² = 12621242159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12621242163.

It is not an unprimeable number, because it can be changed into a prime (12621242167) 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, 72535788 + ... + 72535961.

It is an arithmetic number, because the mean of its divisors is an integer number (2176076250).

Almost surely, 2^12621242163 is an apocalyptic number.

12621242163 is a deficient number, since it is larger than the sum of its proper divisors (4787367837).

12621242163 is a wasteful number, since it uses less digits than its factorization.

12621242163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145071781.

The product of its digits is 6912, while the sum is 30.

Adding to 12621242163 its reverse (36124212621), we get a palindrome (48745454784).

The spelling of 12621242163 in words is "twelve billion, six hundred twenty-one million, two hundred forty-two thousand, one hundred sixty-three".