2041242521 has 2 divisors, whose sum is σ = 2041242522. Its totient is φ = 2041242520.

The previous prime is 2041242491. The next prime is 2041242557. The reversal of 2041242521 is 1252421402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1913100121 + 128142400 = 43739^2 + 11320^2 .

It is a cyclic number.

It is not a de Polignac number, because 2041242521 - 2⁶ = 2041242457 is a prime.

It is not a weakly prime, because it can be changed into another prime (2041244521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020621260 + 1020621261.

It is an arithmetic number, because the mean of its divisors is an integer number (1020621261).

Almost surely, 2^2041242521 is an apocalyptic number.

It is an amenable number.

2041242521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2041242521 is an equidigital number, since it uses as much as digits as its factorization.

2041242521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2041242521 is about 45180.1120073866. The cubic root of 2041242521 is about 1268.5225800053.

Adding to 2041242521 its reverse (1252421402), we get a palindrome (3293663923).

The spelling of 2041242521 in words is "two billion, forty-one million, two hundred forty-two thousand, five hundred twenty-one".