12530279171 has 2 divisors, whose sum is σ = 12530279172. Its totient is φ = 12530279170.

The previous prime is 12530279149. The next prime is 12530279207. The reversal of 12530279171 is 17197203521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12530279171 - 2²² = 12526084867 is a prime.

It is a super-2 number, since 2×12530279171² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12530219171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6265139585 + 6265139586.

It is an arithmetic number, because the mean of its divisors is an integer number (6265139586).

Almost surely, 2^12530279171 is an apocalyptic number.

12530279171 is a deficient number, since it is larger than the sum of its proper divisors (1).

12530279171 is an equidigital number, since it uses as much as digits as its factorization.

12530279171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 38.

The spelling of 12530279171 in words is "twelve billion, five hundred thirty million, two hundred seventy-nine thousand, one hundred seventy-one".