20530543013201 has 64 divisors (see below), whose sum is σ = 23299645372416. Its totient is φ = 17961944832000.

The previous prime is 20530543013161. The next prime is 20530543013203. The reversal of 20530543013201 is 10231034503502.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-20530543013201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20530543013203) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1450607141 + ... + 1450621293.

It is an arithmetic number, because the mean of its divisors is an integer number (364056958944).

Almost surely, 2^{20530543013201} is an apocalyptic number.

It is an amenable number.

20530543013201 is a deficient number, since it is larger than the sum of its proper divisors (2769102359215).

20530543013201 is a wasteful number, since it uses less digits than its factorization.

20530543013201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14682.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 20530543013201 its reverse (10231034503502), we get a palindrome (30761577516703).

The spelling of 20530543013201 in words is "twenty trillion, five hundred thirty billion, five hundred forty-three million, thirteen thousand, two hundred one".