2120031343 has 6 divisors (see below), whose sum is σ = 2237484984. Its totient is φ = 2008450404.

The previous prime is 2120031313. The next prime is 2120031349. The reversal of 2120031343 is 3431300212.

It is a de Polignac number, because none of the positive numbers 2^k-2120031343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

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 2120031343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120031349) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2935971 + ... + 2936692.

It is an arithmetic number, because the mean of its divisors is an integer number (372914164).

Almost surely, 2^2120031343 is an apocalyptic number.

2120031343 is a deficient number, since it is larger than the sum of its proper divisors (117453641).

2120031343 is an equidigital number, since it uses as much as digits as its factorization.

2120031343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5872701 (or 5872682 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2120031343 is about 46043.7980948575. The cubic root of 2120031343 is about 1284.6379885319.

Adding to 2120031343 its reverse (3431300212), we get a palindrome (5551331555).

The spelling of 2120031343 in words is "two billion, one hundred twenty million, thirty-one thousand, three hundred forty-three".