12421023101 has 2 divisors, whose sum is σ = 12421023102. Its totient is φ = 12421023100.

The previous prime is 12421023059. The next prime is 12421023107. The reversal of 12421023101 is 10132012421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8126842201 + 4294180900 = 90149^2 + 65530^2 .

It is a cyclic number.

It is not a de Polignac number, because 12421023101 - 2¹⁰ = 12421022077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12421023101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12421023107) 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, 6210511550 + 6210511551.

It is an arithmetic number, because the mean of its divisors is an integer number (6210511551).

Almost surely, 2^12421023101 is an apocalyptic number.

It is an amenable number.

12421023101 is a deficient number, since it is larger than the sum of its proper divisors (1).

12421023101 is an equidigital number, since it uses as much as digits as its factorization.

12421023101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12421023101 its reverse (10132012421), we get a palindrome (22553035522).

The spelling of 12421023101 in words is "twelve billion, four hundred twenty-one million, twenty-three thousand, one hundred one".