2120434213 has 2 divisors, whose sum is σ = 2120434214. Its totient is φ = 2120434212.

The previous prime is 2120434177. The next prime is 2120434223. The reversal of 2120434213 is 3124340212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2119037089 + 1397124 = 46033^2 + 1182^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120434213 is a prime.

It is a super-3 number, since 3×2120434213³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120434223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060217106 + 1060217107.

It is an arithmetic number, because the mean of its divisors is an integer number (1060217107).

Almost surely, 2^2120434213 is an apocalyptic number.

It is an amenable number.

2120434213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120434213 is an equidigital number, since it uses as much as digits as its factorization.

2120434213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2120434213 is about 46048.1727433348. The cubic root of 2120434213 is about 1284.7193567200.

Adding to 2120434213 its reverse (3124340212), we get a palindrome (5244774425).

The spelling of 2120434213 in words is "two billion, one hundred twenty million, four hundred thirty-four thousand, two hundred thirteen".