4011561041 has 2 divisors, whose sum is σ = 4011561042. Its totient is φ = 4011561040.

The previous prime is 4011561013. The next prime is 4011561083. The reversal of 4011561041 is 1401651104.

It is a happy number.

4011561041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2822690641 + 1188870400 = 53129^2 + 34480^2 .

It is a cyclic number.

It is not a de Polignac number, because 4011561041 - 2⁶ = 4011560977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4011560998 and 4011561016.

It is not a weakly prime, because it can be changed into another prime (4011561091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2005780520 + 2005780521.

It is an arithmetic number, because the mean of its divisors is an integer number (2005780521).

Almost surely, 2^4011561041 is an apocalyptic number.

It is an amenable number.

4011561041 is a deficient number, since it is larger than the sum of its proper divisors (1).

4011561041 is an equidigital number, since it uses as much as digits as its factorization.

4011561041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 4011561041 is about 63336.8853117992. The cubic root of 4011561041 is about 1588.9289149921.

The spelling of 4011561041 in words is "four billion, eleven million, five hundred sixty-one thousand, forty-one".