12626543101 has 2 divisors, whose sum is σ = 12626543102. Its totient is φ = 12626543100.

The previous prime is 12626543099. The next prime is 12626543107. The reversal of 12626543101 is 10134562621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8022784900 + 4603758201 = 89570^2 + 67851^2 .

It is an emirp because it is prime and its reverse (10134562621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12626543101 - 2¹ = 12626543099 is a prime.

Together with 12626543099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12626543107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6313271550 + 6313271551.

It is an arithmetic number, because the mean of its divisors is an integer number (6313271551).

Almost surely, 2^12626543101 is an apocalyptic number.

It is an amenable number.

12626543101 is a deficient number, since it is larger than the sum of its proper divisors (1).

12626543101 is an equidigital number, since it uses as much as digits as its factorization.

12626543101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 12626543101 in words is "twelve billion, six hundred twenty-six million, five hundred forty-three thousand, one hundred one".