12909943383 has 4 divisors (see below), whose sum is σ = 17213257848. Its totient is φ = 8606628920.

The previous prime is 12909943381. The next prime is 12909943411. The reversal of 12909943383 is 38334990921.

12909943383 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 a cyclic number.

It is not a de Polignac number, because 12909943383 - 2¹ = 12909943381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12909943381) 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 in 3 ways as a sum of consecutive naturals, for example, 2151657228 + ... + 2151657233.

It is an arithmetic number, because the mean of its divisors is an integer number (4303314462).

Almost surely, 2^12909943383 is an apocalyptic number.

12909943383 is a deficient number, since it is larger than the sum of its proper divisors (4303314465).

12909943383 is an equidigital number, since it uses as much as digits as its factorization.

12909943383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4303314464.

The product of its (nonzero) digits is 1259712, while the sum is 51.

The spelling of 12909943383 in words is "twelve billion, nine hundred nine million, nine hundred forty-three thousand, three hundred eighty-three".