23201143 has 16 divisors (see below), whose sum is σ = 27095040. Its totient is φ = 19457856.

The previous prime is 23201137. The next prime is 23201153. The reversal of 23201143 is 34110232.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23201143 - 2¹³ = 23192951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23201153) 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, 103930 + ... + 104152.

It is an arithmetic number, because the mean of its divisors is an integer number (1693440).

Almost surely, 2^23201143 is an apocalyptic number.

23201143 is a deficient number, since it is larger than the sum of its proper divisors (3893897).

23201143 is a wasteful number, since it uses less digits than its factorization.

23201143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 23201143 is about 4816.7564812849. The cubic root of 23201143 is about 285.2133131657.

Adding to 23201143 its reverse (34110232), we get a palindrome (57311375).

The spelling of 23201143 in words is "twenty-three million, two hundred one thousand, one hundred forty-three".