2120004312343 has 4 divisors (see below), whose sum is σ = 2120077980520. Its totient is φ = 2119930644168.

The previous prime is 2120004312203. The next prime is 2120004312347. The reversal of 2120004312343 is 3432134000212.

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 2120004312343 - 2²⁹ = 2119467441431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120004312347) 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, 36790905 + ... + 36848482.

It is an arithmetic number, because the mean of its divisors is an integer number (530019495130).

Almost surely, 2^{2120004312343} is an apocalyptic number.

2120004312343 is a deficient number, since it is larger than the sum of its proper divisors (73668177).

2120004312343 is an equidigital number, since it uses as much as digits as its factorization.

2120004312343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73668176.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 2120004312343 its reverse (3432134000212), we get a palindrome (5552138312555).

The spelling of 2120004312343 in words is "two trillion, one hundred twenty billion, four million, three hundred twelve thousand, three hundred forty-three".