4032180121 has 2 divisors, whose sum is σ = 4032180122. Its totient is φ = 4032180120.

The previous prime is 4032180109. The next prime is 4032180127. The reversal of 4032180121 is 1210812304.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3157203721 + 874976400 = 56189^2 + 29580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4032180121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4032180092 and 4032180101.

It is not a weakly prime, because it can be changed into another prime (4032180127) 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, 2016090060 + 2016090061.

It is an arithmetic number, because the mean of its divisors is an integer number (2016090061).

Almost surely, 2^4032180121 is an apocalyptic number.

It is an amenable number.

4032180121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4032180121 is an equidigital number, since it uses as much as digits as its factorization.

4032180121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 4032180121 is about 63499.4497692697. The cubic root of 4032180121 is about 1591.6465835915.

Adding to 4032180121 its reverse (1210812304), we get a palindrome (5242992425).

The spelling of 4032180121 in words is "four billion, thirty-two million, one hundred eighty thousand, one hundred twenty-one".