2101940041 has 2 divisors, whose sum is σ = 2101940042. Its totient is φ = 2101940040.

The previous prime is 2101940023. The next prime is 2101940047. The reversal of 2101940041 is 1400491012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1352768400 + 749171641 = 36780^2 + 27371^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101940041 - 2²¹ = 2099842889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2101939994 and 2101940021.

It is not a weakly prime, because it can be changed into another prime (2101940047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050970020 + 1050970021.

It is an arithmetic number, because the mean of its divisors is an integer number (1050970021).

Almost surely, 2^2101940041 is an apocalyptic number.

It is an amenable number.

2101940041 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101940041 is an equidigital number, since it uses as much as digits as its factorization.

2101940041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 2101940041 is about 45846.9196457079. The cubic root of 2101940041 is about 1280.9733890240.

The spelling of 2101940041 in words is "two billion, one hundred one million, nine hundred forty thousand, forty-one".