12105452040203 has 2 divisors, whose sum is σ = 12105452040204. Its totient is φ = 12105452040202.

The previous prime is 12105452039929. The next prime is 12105452040211. The reversal of 12105452040203 is 30204025450121.

It is a strong prime.

It is an emirp because it is prime and its reverse (30204025450121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12105452040203 - 2¹² = 12105452036107 is a prime.

It is not a weakly prime, because it can be changed into another prime (12105452040233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6052726020101 + 6052726020102.

It is an arithmetic number, because the mean of its divisors is an integer number (6052726020102).

Almost surely, 2^{12105452040203} is an apocalyptic number.

12105452040203 is a deficient number, since it is larger than the sum of its proper divisors (1).

12105452040203 is an equidigital number, since it uses as much as digits as its factorization.

12105452040203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 12105452040203 its reverse (30204025450121), we get a palindrome (42309477490324).

The spelling of 12105452040203 in words is "twelve trillion, one hundred five billion, four hundred fifty-two million, forty thousand, two hundred three".