201124400143 has 4 divisors (see below), whose sum is σ = 201485485800. Its totient is φ = 200763314488.

The previous prime is 201124400131. The next prime is 201124400177. The reversal of 201124400143 is 341004421102.

It is a happy number.

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 201124400143 - 2⁹ = 201124399631 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 (201121400143) 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, 180541993 + ... + 180543106.

It is an arithmetic number, because the mean of its divisors is an integer number (50371371450).

Almost surely, 2^201124400143 is an apocalyptic number.

201124400143 is a deficient number, since it is larger than the sum of its proper divisors (361085657).

201124400143 is an equidigital number, since it uses as much as digits as its factorization.

201124400143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361085656.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 201124400143 its reverse (341004421102), we get a palindrome (542128821245).

The spelling of 201124400143 in words is "two hundred one billion, one hundred twenty-four million, four hundred thousand, one hundred forty-three".