12501112133 has 2 divisors, whose sum is σ = 12501112134. Its totient is φ = 12501112132.

The previous prime is 12501112109. The next prime is 12501112193. The reversal of 12501112133 is 33121110521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11124553729 + 1376558404 = 105473^2 + 37102^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12501112133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12501112193) 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, 6250556066 + 6250556067.

It is an arithmetic number, because the mean of its divisors is an integer number (6250556067).

Almost surely, 2^12501112133 is an apocalyptic number.

It is an amenable number.

12501112133 is a deficient number, since it is larger than the sum of its proper divisors (1).

12501112133 is an equidigital number, since it uses as much as digits as its factorization.

12501112133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 12501112133 its reverse (33121110521), we get a palindrome (45622222654).

The spelling of 12501112133 in words is "twelve billion, five hundred one million, one hundred twelve thousand, one hundred thirty-three".