1219683343009 has 4 divisors (see below), whose sum is σ = 1220602472704. Its totient is φ = 1218764213316.

The previous prime is 1219683343007. The next prime is 1219683343031. The reversal of 1219683343009 is 9003433869121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1219683343009 - 2¹ = 1219683343007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1219683343007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459562857 + ... + 459565510.

It is an arithmetic number, because the mean of its divisors is an integer number (305150618176).

Almost surely, 2^{1219683343009} is an apocalyptic number.

It is an amenable number.

1219683343009 is a deficient number, since it is larger than the sum of its proper divisors (919129695).

1219683343009 is an equidigital number, since it uses as much as digits as its factorization.

1219683343009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919129694.

The product of its (nonzero) digits is 839808, while the sum is 49.

The spelling of 1219683343009 in words is "one trillion, two hundred nineteen billion, six hundred eighty-three million, three hundred forty-three thousand, nine".