252244010321 has 2 divisors, whose sum is σ = 252244010322. Its totient is φ = 252244010320.

The previous prime is 252244010311. The next prime is 252244010351. The reversal of 252244010321 is 123010442252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181551835921 + 70692174400 = 426089^2 + 265880^2 .

It is a cyclic number.

It is not a de Polignac number, because 252244010321 - 2³⁰ = 251170268497 is a prime.

It is not a weakly prime, because it can be changed into another prime (252244010311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126122005160 + 126122005161.

It is an arithmetic number, because the mean of its divisors is an integer number (126122005161).

Almost surely, 2^252244010321 is an apocalyptic number.

It is an amenable number.

252244010321 is a deficient number, since it is larger than the sum of its proper divisors (1).

252244010321 is an equidigital number, since it uses as much as digits as its factorization.

252244010321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 252244010321 its reverse (123010442252), we get a palindrome (375254452573).

The spelling of 252244010321 in words is "two hundred fifty-two billion, two hundred forty-four million, ten thousand, three hundred twenty-one".