252105130213 has 4 divisors (see below), whose sum is σ = 252151934400. Its totient is φ = 252058326028.

The previous prime is 252105130187. The next prime is 252105130241. The reversal of 252105130213 is 312031501252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252105130213 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 (252105130243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23394013 + ... + 23404786.

It is an arithmetic number, because the mean of its divisors is an integer number (63037983600).

Almost surely, 2^252105130213 is an apocalyptic number.

It is an amenable number.

252105130213 is a deficient number, since it is larger than the sum of its proper divisors (46804187).

252105130213 is an equidigital number, since it uses as much as digits as its factorization.

252105130213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46804186.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 252105130213 its reverse (312031501252), we get a palindrome (564136631465).

The spelling of 252105130213 in words is "two hundred fifty-two billion, one hundred five million, one hundred thirty thousand, two hundred thirteen".