12987117334 has 4 divisors (see below), whose sum is σ = 19480676004. Its totient is φ = 6493558666.

The previous prime is 12987117331. The next prime is 12987117337. The reversal of 12987117334 is 43371178921.

12987117334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (12987117331) and next prime (12987117337).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12987117331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3246779332 + ... + 3246779335.

It is an arithmetic number, because the mean of its divisors is an integer number (4870169001).

Almost surely, 2^12987117334 is an apocalyptic number.

12987117334 is a deficient number, since it is larger than the sum of its proper divisors (6493558670).

12987117334 is an equidigital number, since it uses as much as digits as its factorization.

12987117334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6493558669.

The product of its digits is 254016, while the sum is 46.

It can be divided in two parts, 12987 and 117334, that added together give a 4-th power (130321 = 19⁴).

The spelling of 12987117334 in words is "twelve billion, nine hundred eighty-seven million, one hundred seventeen thousand, three hundred thirty-four".