20013145355341 has 8 divisors (see below), whose sum is σ = 20707189205400. Its totient is φ = 19319363864640.

The previous prime is 20013145355279. The next prime is 20013145355347. The reversal of 20013145355341 is 14355354131002.

It can be written as a sum of positive squares in 4 ways, for example, as 11910981610441 + 8102163744900 = 3451229^2 + 2846430^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20013145355341 - 2¹⁷ = 20013145224269 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20013145355341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013145355347) 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 in 7 ways as a sum of consecutive naturals, for example, 65434626 + ... + 65739763.

It is an arithmetic number, because the mean of its divisors is an integer number (2588398650675).

Almost surely, 2^{20013145355341} is an apocalyptic number.

It is an amenable number.

20013145355341 is a deficient number, since it is larger than the sum of its proper divisors (694043850059).

20013145355341 is a wasteful number, since it uses less digits than its factorization.

20013145355341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131179679.

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 20013145355341 its reverse (14355354131002), we get a palindrome (34368499486343).

The spelling of 20013145355341 in words is "twenty trillion, thirteen billion, one hundred forty-five million, three hundred fifty-five thousand, three hundred forty-one".