20041530354243 has 32 divisors (see below), whose sum is σ = 29737623801600. Its totient is φ = 13340114337600.

The previous prime is 20041530354143. The next prime is 20041530354247. The reversal of 20041530354243 is 34245303514002.

20041530354243 is a `hidden beast` number, since 2 + 0 + 0 + 41 + 5 + 30 + 3 + 542 + 43 = 666.

It is not a de Polignac number, because 20041530354243 - 2²⁸ = 20041261918787 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20041530354198 and 20041530354207.

It is not an unprimeable number, because it can be changed into a prime (20041530354247) 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 in 31 ways as a sum of consecutive naturals, for example, 170858148 + ... + 170975406.

It is an arithmetic number, because the mean of its divisors is an integer number (929300743800).

Almost surely, 2^{20041530354243} is an apocalyptic number.

20041530354243 is a deficient number, since it is larger than the sum of its proper divisors (9696093447357).

20041530354243 is a wasteful number, since it uses less digits than its factorization.

20041530354243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127120 (or 127114 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 20041530354243 its reverse (34245303514002), we get a palindrome (54286833868245).

The spelling of 20041530354243 in words is "twenty trillion, forty-one billion, five hundred thirty million, three hundred fifty-four thousand, two hundred forty-three".