12565132103 has 2 divisors, whose sum is σ = 12565132104. Its totient is φ = 12565132102.

The previous prime is 12565132049. The next prime is 12565132121. The reversal of 12565132103 is 30123156521.

It is a strong prime.

It is an emirp because it is prime and its reverse (30123156521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12565132103 - 2²² = 12560937799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12565132183) 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, 6282566051 + 6282566052.

It is an arithmetic number, because the mean of its divisors is an integer number (6282566052).

Almost surely, 2^12565132103 is an apocalyptic number.

12565132103 is a deficient number, since it is larger than the sum of its proper divisors (1).

12565132103 is an equidigital number, since it uses as much as digits as its factorization.

12565132103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 12565132103 its reverse (30123156521), we get a palindrome (42688288624).

The spelling of 12565132103 in words is "twelve billion, five hundred sixty-five million, one hundred thirty-two thousand, one hundred three".