252411343321 has 4 divisors (see below), whose sum is σ = 253217769652. Its totient is φ = 251604916992.

The previous prime is 252411343297. The next prime is 252411343337. The reversal of 252411343321 is 123343114252.

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

It can be written as a sum of positive squares in 2 ways, for example, as 86179822096 + 166231521225 = 293564^2 + 407715^2 .

It is a cyclic number.

It is not a de Polignac number, because 252411343321 - 2⁹ = 252411342809 is a prime.

It is a super-2 number, since 2×252411343321² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252411343021) 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, 403212696 + ... + 403213321.

It is an arithmetic number, because the mean of its divisors is an integer number (63304442413).

Almost surely, 2^252411343321 is an apocalyptic number.

It is an amenable number.

252411343321 is a deficient number, since it is larger than the sum of its proper divisors (806426331).

252411343321 is an equidigital number, since it uses as much as digits as its factorization.

252411343321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806426330.

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

Adding to 252411343321 its reverse (123343114252), we get a palindrome (375754457573).

The spelling of 252411343321 in words is "two hundred fifty-two billion, four hundred eleven million, three hundred forty-three thousand, three hundred twenty-one".