12913412387 has 4 divisors (see below), whose sum is σ = 12913779840. Its totient is φ = 12913044936.

The previous prime is 12913412383. The next prime is 12913412389. The reversal of 12913412387 is 78321431921.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12913412387 - 2² = 12913412383 is a prime.

It is a super-3 number, since 3×12913412387³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12913412383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124688 + ... + 203405.

It is an arithmetic number, because the mean of its divisors is an integer number (3228444960).

Almost surely, 2^12913412387 is an apocalyptic number.

12913412387 is a deficient number, since it is larger than the sum of its proper divisors (367453).

12913412387 is an equidigital number, since it uses as much as digits as its factorization.

12913412387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367452.

The product of its digits is 72576, while the sum is 41.

The spelling of 12913412387 in words is "twelve billion, nine hundred thirteen million, four hundred twelve thousand, three hundred eighty-seven".