6171232121 has 2 divisors, whose sum is σ = 6171232122. Its totient is φ = 6171232120.

The previous prime is 6171232099. The next prime is 6171232141. The reversal of 6171232121 is 1212321716.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3313153600 + 2858078521 = 57560^2 + 53461^2 .

It is a cyclic number.

It is not a de Polignac number, because 6171232121 - 2¹⁰ = 6171231097 is a prime.

It is not a weakly prime, because it can be changed into another prime (6171232141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3085616060 + 3085616061.

It is an arithmetic number, because the mean of its divisors is an integer number (3085616061).

Almost surely, 2^6171232121 is an apocalyptic number.

It is an amenable number.

6171232121 is a deficient number, since it is larger than the sum of its proper divisors (1).

6171232121 is an equidigital number, since it uses as much as digits as its factorization.

6171232121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 26.

The square root of 6171232121 is about 78557.1901292301. The cubic root of 6171232121 is about 1834.2447892742.

Adding to 6171232121 its reverse (1212321716), we get a palindrome (7383553837).

The spelling of 6171232121 in words is "six billion, one hundred seventy-one million, two hundred thirty-two thousand, one hundred twenty-one".