12240971173 has 2 divisors, whose sum is σ = 12240971174. Its totient is φ = 12240971172.

The previous prime is 12240971129. The next prime is 12240971177. The reversal of 12240971173 is 37117904221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7392216484 + 4848754689 = 85978^2 + 69633^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12240971173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12240971177) 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, 6120485586 + 6120485587.

It is an arithmetic number, because the mean of its divisors is an integer number (6120485587).

Almost surely, 2^12240971173 is an apocalyptic number.

It is an amenable number.

12240971173 is a deficient number, since it is larger than the sum of its proper divisors (1).

12240971173 is an equidigital number, since it uses as much as digits as its factorization.

12240971173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 37.

The spelling of 12240971173 in words is "twelve billion, two hundred forty million, nine hundred seventy-one thousand, one hundred seventy-three".