20110143 has 4 divisors (see below), whose sum is σ = 26813528. Its totient is φ = 13406760.

The previous prime is 20110141. The next prime is 20110169. The reversal of 20110143 is 34101102.

It is a happy number.

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

It is not a de Polignac number, because 20110143 - 2¹ = 20110141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3351688 + ... + 3351693.

It is an arithmetic number, because the mean of its divisors is an integer number (6703382).

Almost surely, 2^20110143 is an apocalyptic number.

20110143 is a deficient number, since it is larger than the sum of its proper divisors (6703385).

20110143 is an equidigital number, since it uses as much as digits as its factorization.

20110143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6703384.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 20110143 is about 4484.4334090273. The cubic root of 20110143 is about 271.9391398942.

Adding to 20110143 its reverse (34101102), we get a palindrome (54211245).

The spelling of 20110143 in words is "twenty million, one hundred ten thousand, one hundred forty-three".