12131213132273 has 2 divisors, whose sum is σ = 12131213132274. Its totient is φ = 12131213132272.

The previous prime is 12131213132149. The next prime is 12131213132341. The reversal of 12131213132273 is 37223131213121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11083153164769 + 1048059967504 = 3329137^2 + 1023748^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12131213132273 is a prime.

It is not a weakly prime, because it can be changed into another prime (12131213134273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6065606566136 + 6065606566137.

It is an arithmetic number, because the mean of its divisors is an integer number (6065606566137).

Almost surely, 2^{12131213132273} is an apocalyptic number.

It is an amenable number.

12131213132273 is a deficient number, since it is larger than the sum of its proper divisors (1).

12131213132273 is an equidigital number, since it uses as much as digits as its factorization.

12131213132273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 32.

Adding to 12131213132273 its reverse (37223131213121), we get a palindrome (49354344345394).

The spelling of 12131213132273 in words is "twelve trillion, one hundred thirty-one billion, two hundred thirteen million, one hundred thirty-two thousand, two hundred seventy-three".