12512012052457 has 2 divisors, whose sum is σ = 12512012052458. Its totient is φ = 12512012052456.

The previous prime is 12512012052361. The next prime is 12512012052503. The reversal of 12512012052457 is 75425021021521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10979043679296 + 1532968373161 = 3313464^2 + 1238131^2 .

It is a cyclic number.

It is not a de Polignac number, because 12512012052457 - 2²³ = 12512003663849 is a prime.

It is not a weakly prime, because it can be changed into another prime (12512012055457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6256006026228 + 6256006026229.

It is an arithmetic number, because the mean of its divisors is an integer number (6256006026229).

Almost surely, 2^{12512012052457} is an apocalyptic number.

It is an amenable number.

12512012052457 is a deficient number, since it is larger than the sum of its proper divisors (1).

12512012052457 is an equidigital number, since it uses as much as digits as its factorization.

12512012052457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56000, while the sum is 37.

Adding to 12512012052457 its reverse (75425021021521), we get a palindrome (87937033073978).

The spelling of 12512012052457 in words is "twelve trillion, five hundred twelve billion, twelve million, fifty-two thousand, four hundred fifty-seven".