20352211541 has 2 divisors, whose sum is σ = 20352211542. Its totient is φ = 20352211540.

The previous prime is 20352211507. The next prime is 20352211559. The reversal of 20352211541 is 14511225302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16499402500 + 3852809041 = 128450^2 + 62071^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20352211541 is a prime.

It is a super-2 number, since 2×20352211541² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20352211541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20352211501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10176105770 + 10176105771.

It is an arithmetic number, because the mean of its divisors is an integer number (10176105771).

Almost surely, 2^20352211541 is an apocalyptic number.

It is an amenable number.

20352211541 is a deficient number, since it is larger than the sum of its proper divisors (1).

20352211541 is an equidigital number, since it uses as much as digits as its factorization.

20352211541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 20352211541 its reverse (14511225302), we get a palindrome (34863436843).

The spelling of 20352211541 in words is "twenty billion, three hundred fifty-two million, two hundred eleven thousand, five hundred forty-one".