12012420125513 has 2 divisors, whose sum is σ = 12012420125514. Its totient is φ = 12012420125512.

The previous prime is 12012420125507. The next prime is 12012420125557. The reversal of 12012420125513 is 31552102421021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9010545087049 + 3001875038464 = 3001757^2 + 1732592^2 .

It is a cyclic number.

It is not a de Polignac number, because 12012420125513 - 2¹² = 12012420121417 is a prime.

It is not a weakly prime, because it can be changed into another prime (12012420125813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006210062756 + 6006210062757.

It is an arithmetic number, because the mean of its divisors is an integer number (6006210062757).

Almost surely, 2^{12012420125513} is an apocalyptic number.

It is an amenable number.

12012420125513 is a deficient number, since it is larger than the sum of its proper divisors (1).

12012420125513 is an equidigital number, since it uses as much as digits as its factorization.

12012420125513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 12012420125513 its reverse (31552102421021), we get a palindrome (43564522546534).

The spelling of 12012420125513 in words is "twelve trillion, twelve billion, four hundred twenty million, one hundred twenty-five thousand, five hundred thirteen".