2120432317 has 2 divisors, whose sum is σ = 2120432318. Its totient is φ = 2120432316.

The previous prime is 2120432299. The next prime is 2120432359. The reversal of 2120432317 is 7132340212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2105524996 + 14907321 = 45886^2 + 3861^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120432317 - 2⁷ = 2120432189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2120432291 and 2120432300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120436317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060216158 + 1060216159.

It is an arithmetic number, because the mean of its divisors is an integer number (1060216159).

Almost surely, 2^2120432317 is an apocalyptic number.

It is an amenable number.

2120432317 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120432317 is an equidigital number, since it uses as much as digits as its factorization.

2120432317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 2120432317 is about 46048.1521561941. The cubic root of 2120432317 is about 1284.7189738065.

Adding to 2120432317 its reverse (7132340212), we get a palindrome (9252772529).

The spelling of 2120432317 in words is "two billion, one hundred twenty million, four hundred thirty-two thousand, three hundred seventeen".