12511111343 has 2 divisors, whose sum is σ = 12511111344. Its totient is φ = 12511111342.

The previous prime is 12511111307. The next prime is 12511111363. The reversal of 12511111343 is 34311111521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12511111343 - 2¹⁰ = 12511110319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12511111363) 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, 6255555671 + 6255555672.

It is an arithmetic number, because the mean of its divisors is an integer number (6255555672).

Almost surely, 2^12511111343 is an apocalyptic number.

12511111343 is a deficient number, since it is larger than the sum of its proper divisors (1).

12511111343 is an equidigital number, since it uses as much as digits as its factorization.

12511111343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 23.

Adding to 12511111343 its reverse (34311111521), we get a palindrome (46822222864).

The spelling of 12511111343 in words is "twelve billion, five hundred eleven million, one hundred eleven thousand, three hundred forty-three".