23271143 has 12 divisors (see below), whose sum is σ = 28072080. Its totient is φ = 18894816.

The previous prime is 23271139. The next prime is 23271167. The reversal of 23271143 is 34117232.

It is not a de Polignac number, because 23271143 - 2² = 23271139 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 (23271133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2078 + ... + 7131.

It is an arithmetic number, because the mean of its divisors is an integer number (2339340).

Almost surely, 2^23271143 is an apocalyptic number.

23271143 is a deficient number, since it is larger than the sum of its proper divisors (4800937).

23271143 is an equidigital number, since it uses as much as digits as its factorization.

23271143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9254 (or 9235 counting only the distinct ones).

The product of its digits is 1008, while the sum is 23.

The square root of 23271143 is about 4824.0173092558. The cubic root of 23271143 is about 285.4998635140.

Adding to 23271143 its reverse (34117232), we get a palindrome (57388375).

The spelling of 23271143 in words is "twenty-three million, two hundred seventy-one thousand, one hundred forty-three".