252143423311 has 24 divisors (see below), whose sum is σ = 274498090944. Its totient is φ = 231499607040.

The previous prime is 252143423269. The next prime is 252143423321. The reversal of 252143423311 is 113324341252.

It is not a de Polignac number, because 252143423311 - 2¹³ = 252143415119 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 (252143423321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38159770 + ... + 38166376.

It is an arithmetic number, because the mean of its divisors is an integer number (11437420456).

Almost surely, 2^252143423311 is an apocalyptic number.

252143423311 is a deficient number, since it is larger than the sum of its proper divisors (22354667633).

252143423311 is a wasteful number, since it uses less digits than its factorization.

252143423311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7811 (or 7798 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

Adding to 252143423311 its reverse (113324341252), we get a palindrome (365467764563).

The spelling of 252143423311 in words is "two hundred fifty-two billion, one hundred forty-three million, four hundred twenty-three thousand, three hundred eleven".