20513540415341 has 2 divisors, whose sum is σ = 20513540415342. Its totient is φ = 20513540415340.

The previous prime is 20513540415331. The next prime is 20513540415391. The reversal of 20513540415341 is 14351404531502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20509766770441 + 3773644900 = 4528771^2 + 61430^2 .

It is a cyclic number.

It is not a de Polignac number, because 20513540415341 - 2³⁸ = 20238662508397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20513540415295 and 20513540415304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20513540415331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10256770207670 + 10256770207671.

It is an arithmetic number, because the mean of its divisors is an integer number (10256770207671).

Almost surely, 2^{20513540415341} is an apocalyptic number.

It is an amenable number.

20513540415341 is a deficient number, since it is larger than the sum of its proper divisors (1).

20513540415341 is an equidigital number, since it uses as much as digits as its factorization.

20513540415341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 20513540415341 its reverse (14351404531502), we get a palindrome (34864944946843).

The spelling of 20513540415341 in words is "twenty trillion, five hundred thirteen billion, five hundred forty million, four hundred fifteen thousand, three hundred forty-one".