4011242161 has 2 divisors, whose sum is σ = 4011242162. Its totient is φ = 4011242160.

The previous prime is 4011242107. The next prime is 4011242201. The reversal of 4011242161 is 1612421104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3633678400 + 377563761 = 60280^2 + 19431^2 .

It is a cyclic number.

It is not a de Polignac number, because 4011242161 - 2¹³ = 4011233969 is a prime.

It is not a weakly prime, because it can be changed into another prime (4011242101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2005621080 + 2005621081.

It is an arithmetic number, because the mean of its divisors is an integer number (2005621081).

Almost surely, 2^4011242161 is an apocalyptic number.

It is an amenable number.

4011242161 is a deficient number, since it is larger than the sum of its proper divisors (1).

4011242161 is an equidigital number, since it uses as much as digits as its factorization.

4011242161 is an evil number, because the sum of its binary digits is even.

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

The square root of 4011242161 is about 63334.3679292689. The cubic root of 4011242161 is about 1588.8868124230.

Adding to 4011242161 its reverse (1612421104), we get a palindrome (5623663265).

The spelling of 4011242161 in words is "four billion, eleven million, two hundred forty-two thousand, one hundred sixty-one".