12512103113413 has 4 divisors (see below), whose sum is σ = 12943554944940. Its totient is φ = 12080651281888.

The previous prime is 12512103113399. The next prime is 12512103113479. The reversal of 12512103113413 is 31431130121521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8903402596449 + 3608700516964 = 2983857^2 + 1899658^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12512103113413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512103113513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215725915720 + ... + 215725915777.

It is an arithmetic number, because the mean of its divisors is an integer number (3235888736235).

Almost surely, 2^{12512103113413} is an apocalyptic number.

It is an amenable number.

12512103113413 is a deficient number, since it is larger than the sum of its proper divisors (431451831527).

12512103113413 is an equidigital number, since it uses as much as digits as its factorization.

12512103113413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431451831526.

The product of its (nonzero) digits is 2160, while the sum is 28.

Adding to 12512103113413 its reverse (31431130121521), we get a palindrome (43943233234934).

The spelling of 12512103113413 in words is "twelve trillion, five hundred twelve billion, one hundred three million, one hundred thirteen thousand, four hundred thirteen".