20301103550443 has 16 divisors (see below), whose sum is σ = 20998947060000. Its totient is φ = 19615091798016.

The previous prime is 20301103550407. The next prime is 20301103550473. The reversal of 20301103550443 is 34405530110302.

It is a cyclic number.

It is not a de Polignac number, because 20301103550443 - 2²¹ = 20301101453291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20301103550473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11448933 + ... + 13102681.

It is an arithmetic number, because the mean of its divisors is an integer number (1312434191250).

Almost surely, 2^{20301103550443} is an apocalyptic number.

20301103550443 is a deficient number, since it is larger than the sum of its proper divisors (697843509557).

20301103550443 is a wasteful number, since it uses less digits than its factorization.

20301103550443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1657326.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 20301103550443 its reverse (34405530110302), we get a palindrome (54706633660745).

The spelling of 20301103550443 in words is "twenty trillion, three hundred one billion, one hundred three million, five hundred fifty thousand, four hundred forty-three".