112005252521 has 2 divisors, whose sum is σ = 112005252522. Its totient is φ = 112005252520.

The previous prime is 112005252517. The next prime is 112005252533. The reversal of 112005252521 is 125252500211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57907609600 + 54097642921 = 240640^2 + 232589^2 .

It is a cyclic number.

It is not a de Polignac number, because 112005252521 - 2² = 112005252517 is a prime.

It is not a weakly prime, because it can be changed into another prime (112005252511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56002626260 + 56002626261.

It is an arithmetic number, because the mean of its divisors is an integer number (56002626261).

Almost surely, 2^112005252521 is an apocalyptic number.

It is an amenable number.

112005252521 is a deficient number, since it is larger than the sum of its proper divisors (1).

112005252521 is an equidigital number, since it uses as much as digits as its factorization.

112005252521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 112005252521 its reverse (125252500211), we get a palindrome (237257752732).

The spelling of 112005252521 in words is "one hundred twelve billion, five million, two hundred fifty-two thousand, five hundred twenty-one".