112451402521 has 2 divisors, whose sum is σ = 112451402522. Its totient is φ = 112451402520.

The previous prime is 112451402513. The next prime is 112451402561. The reversal of 112451402521 is 125204154211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82865682496 + 29585720025 = 287864^2 + 172005^2 .

It is a cyclic number.

It is not a de Polignac number, because 112451402521 - 2³ = 112451402513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112451402521.

It is not a weakly prime, because it can be changed into another prime (112451402561) 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 as a sum of consecutive naturals, namely, 56225701260 + 56225701261.

It is an arithmetic number, because the mean of its divisors is an integer number (56225701261).

Almost surely, 2^112451402521 is an apocalyptic number.

It is an amenable number.

112451402521 is a deficient number, since it is larger than the sum of its proper divisors (1).

112451402521 is an equidigital number, since it uses as much as digits as its factorization.

112451402521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 112451402521 its reverse (125204154211), we get a palindrome (237655556732).

The spelling of 112451402521 in words is "one hundred twelve billion, four hundred fifty-one million, four hundred two thousand, five hundred twenty-one".