252345312231 has 4 divisors (see below), whose sum is σ = 336460416312. Its totient is φ = 168230208152.

The previous prime is 252345312221. The next prime is 252345312251. The reversal of 252345312231 is 132213543252.

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 252345312231 - 2¹³ = 252345304039 is a prime.

It is a super-2 number, since 2×252345312231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252345312192 and 252345312201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252345312211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42057552036 + ... + 42057552041.

It is an arithmetic number, because the mean of its divisors is an integer number (84115104078).

Almost surely, 2^252345312231 is an apocalyptic number.

252345312231 is a deficient number, since it is larger than the sum of its proper divisors (84115104081).

252345312231 is an equidigital number, since it uses as much as digits as its factorization.

252345312231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84115104080.

The product of its digits is 43200, while the sum is 33.

Adding to 252345312231 its reverse (132213543252), we get a palindrome (384558855483).

The spelling of 252345312231 in words is "two hundred fifty-two billion, three hundred forty-five million, three hundred twelve thousand, two hundred thirty-one".