5120432021 has 2 divisors, whose sum is σ = 5120432022. Its totient is φ = 5120432020.

The previous prime is 5120431937. The next prime is 5120432071. The reversal of 5120432021 is 1202340215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4378468900 + 741963121 = 66170^2 + 27239^2 .

It is a cyclic number.

It is not a de Polignac number, because 5120432021 - 2²⁶ = 5053323157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5120431984 and 5120432002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5120432071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2560216010 + 2560216011.

It is an arithmetic number, because the mean of its divisors is an integer number (2560216011).

Almost surely, 2^5120432021 is an apocalyptic number.

It is an amenable number.

5120432021 is a deficient number, since it is larger than the sum of its proper divisors (1).

5120432021 is an equidigital number, since it uses as much as digits as its factorization.

5120432021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 5120432021 is about 71557.1940548258. The cubic root of 5120432021 is about 1723.5962277990.

Adding to 5120432021 its reverse (1202340215), we get a palindrome (6322772236).

The spelling of 5120432021 in words is "five billion, one hundred twenty million, four hundred thirty-two thousand, twenty-one".