12500423133 has 16 divisors (see below), whose sum is σ = 19139404800. Its totient is φ = 7177276080.

The previous prime is 12500423041. The next prime is 12500423137. The reversal of 12500423133 is 33132400521.

It is not a de Polignac number, because 12500423133 - 2¹⁴ = 12500406749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12500423137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9967813 + ... + 9969066.

It is an arithmetic number, because the mean of its divisors is an integer number (1196212800).

Almost surely, 2^12500423133 is an apocalyptic number.

It is an amenable number.

12500423133 is a deficient number, since it is larger than the sum of its proper divisors (6638981667).

12500423133 is a wasteful number, since it uses less digits than its factorization.

12500423133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19936912.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 12500423133 its reverse (33132400521), we get a palindrome (45632823654).

The spelling of 12500423133 in words is "twelve billion, five hundred million, four hundred twenty-three thousand, one hundred thirty-three".