2120312031343 has 16 divisors (see below), whose sum is σ = 2348020938240. Its totient is φ = 1898439206400.

The previous prime is 2120312031241. The next prime is 2120312031353. The reversal of 2120312031343 is 3431302130212.

It is not a de Polignac number, because 2120312031343 - 2²⁹ = 2119775160431 is a prime.

It is a super-2 number, since 2×2120312031343² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120312031353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3806863 + ... + 4328143.

It is an arithmetic number, because the mean of its divisors is an integer number (146751308640).

Almost surely, 2^{2120312031343} is an apocalyptic number.

2120312031343 is a deficient number, since it is larger than the sum of its proper divisors (227708906897).

2120312031343 is a wasteful number, since it uses less digits than its factorization.

2120312031343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526878.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 2120312031343 its reverse (3431302130212), we get a palindrome (5551614161555).

The spelling of 2120312031343 in words is "two trillion, one hundred twenty billion, three hundred twelve million, thirty-one thousand, three hundred forty-three".