2118343019983 has 4 divisors (see below), whose sum is σ = 2119035065848. Its totient is φ = 2117650974120.

The previous prime is 2118343019981. The next prime is 2118343019999. The reversal of 2118343019983 is 3899103438112.

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 2118343019983 - 2¹ = 2118343019981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2118343019983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118343019981) 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, 346018341 + ... + 346024462.

It is an arithmetic number, because the mean of its divisors is an integer number (529758766462).

Almost surely, 2^{2118343019983} is an apocalyptic number.

2118343019983 is a deficient number, since it is larger than the sum of its proper divisors (692045865).

2118343019983 is an equidigital number, since it uses as much as digits as its factorization.

2118343019983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692045864.

The product of its (nonzero) digits is 1119744, while the sum is 52.

The spelling of 2118343019983 in words is "two trillion, one hundred eighteen billion, three hundred forty-three million, nineteen thousand, nine hundred eighty-three".