20351013603541 has 2 divisors, whose sum is σ = 20351013603542. Its totient is φ = 20351013603540.

The previous prime is 20351013603509. The next prime is 20351013603551. The reversal of 20351013603541 is 14530631015302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18515722940100 + 1835290663441 = 4302990^2 + 1354729^2 .

It is a cyclic number.

It is not a de Polignac number, because 20351013603541 - 2⁵ = 20351013603509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20351013603497 and 20351013603506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20351013603551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10175506801770 + 10175506801771.

It is an arithmetic number, because the mean of its divisors is an integer number (10175506801771).

Almost surely, 2^{20351013603541} is an apocalyptic number.

It is an amenable number.

20351013603541 is a deficient number, since it is larger than the sum of its proper divisors (1).

20351013603541 is an equidigital number, since it uses as much as digits as its factorization.

20351013603541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 34.

Adding to 20351013603541 its reverse (14530631015302), we get a palindrome (34881644618843).

The spelling of 20351013603541 in words is "twenty trillion, three hundred fifty-one billion, thirteen million, six hundred three thousand, five hundred forty-one".