20201101143 has 4 divisors (see below), whose sum is σ = 26934801528. Its totient is φ = 13467400760.

The previous prime is 20201101133. The next prime is 20201101147. The reversal of 20201101143 is 34110110202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20201101143 - 2¹² = 20201097047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201101147) 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 3 ways as a sum of consecutive naturals, for example, 3366850188 + ... + 3366850193.

It is an arithmetic number, because the mean of its divisors is an integer number (6733700382).

Almost surely, 2^20201101143 is an apocalyptic number.

20201101143 is a deficient number, since it is larger than the sum of its proper divisors (6733700385).

20201101143 is an equidigital number, since it uses as much as digits as its factorization.

20201101143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6733700384.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20201101143 its reverse (34110110202), we get a palindrome (54311211345).

The spelling of 20201101143 in words is "twenty billion, two hundred one million, one hundred one thousand, one hundred forty-three".