2120343443 has 2 divisors, whose sum is σ = 2120343444. Its totient is φ = 2120343442.

The previous prime is 2120343427. The next prime is 2120343461. The reversal of 2120343443 is 3443430212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2120343443 - 2⁴ = 2120343427 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120345443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060171721 + 1060171722.

It is an arithmetic number, because the mean of its divisors is an integer number (1060171722).

Almost surely, 2^2120343443 is an apocalyptic number.

2120343443 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120343443 is an equidigital number, since it uses as much as digits as its factorization.

2120343443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 2120343443 is about 46047.1871345037. The cubic root of 2120343443 is about 1284.7010246822.

Adding to 2120343443 its reverse (3443430212), we get a palindrome (5563773655).

It can be divided in two parts, 21203 and 43443, that added together give a palindrome (64646).

The spelling of 2120343443 in words is "two billion, one hundred twenty million, three hundred forty-three thousand, four hundred forty-three".