12171431241 has 6 divisors (see below), whose sum is σ = 17580956250. Its totient is φ = 8114287488.

The previous prime is 12171431227. The next prime is 12171431267. The reversal of 12171431241 is 14213417121.

It is a happy number.

12171431241 is a `hidden beast` number, since 121 + 71 + 431 + 2 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11708105616 + 463325625 = 108204^2 + 21525^2 .

It is not a de Polignac number, because 12171431241 - 2⁹ = 12171430729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12171431201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 676190616 + ... + 676190633.

It is an arithmetic number, because the mean of its divisors is an integer number (2930159375).

Almost surely, 2^12171431241 is an apocalyptic number.

It is an amenable number.

12171431241 is a deficient number, since it is larger than the sum of its proper divisors (5409525009).

12171431241 is a wasteful number, since it uses less digits than its factorization.

12171431241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352381255 (or 1352381252 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

Adding to 12171431241 its reverse (14213417121), we get a palindrome (26384848362).

The spelling of 12171431241 in words is "twelve billion, one hundred seventy-one million, four hundred thirty-one thousand, two hundred forty-one".