12020383541 has 2 divisors, whose sum is σ = 12020383542. Its totient is φ = 12020383540.

The previous prime is 12020383523. The next prime is 12020383601. The reversal of 12020383541 is 14538302021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9740703025 + 2279680516 = 98695^2 + 47746^2 .

It is a cyclic number.

It is not a de Polignac number, because 12020383541 - 2¹⁸ = 12020121397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12020383741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010191770 + 6010191771.

It is an arithmetic number, because the mean of its divisors is an integer number (6010191771).

Almost surely, 2^12020383541 is an apocalyptic number.

It is an amenable number.

12020383541 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020383541 is an equidigital number, since it uses as much as digits as its factorization.

12020383541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 12020383541 its reverse (14538302021), we get a palindrome (26558685562).

The spelling of 12020383541 in words is "twelve billion, twenty million, three hundred eighty-three thousand, five hundred forty-one".