112020521 has 2 divisors, whose sum is σ = 112020522. Its totient is φ = 112020520.

The previous prime is 112020457. The next prime is 112020529. The reversal of 112020521 is 125020211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59892121 + 52128400 = 7739^2 + 7220^2 .

It is an emirp because it is prime and its reverse (125020211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112020521 - 2⁶ = 112020457 is a prime.

It is a super-2 number, since 2×112020521² = 25097194250222882, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 112020496 and 112020505.

It is not a weakly prime, because it can be changed into another prime (112020529) 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, 56010260 + 56010261.

It is an arithmetic number, because the mean of its divisors is an integer number (56010261).

Almost surely, 2^112020521 is an apocalyptic number.

It is an amenable number.

112020521 is a deficient number, since it is larger than the sum of its proper divisors (1).

112020521 is an equidigital number, since it uses as much as digits as its factorization.

112020521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 112020521 is about 10583.9747259713. The cubic root of 112020521 is about 482.0578906381.

Adding to 112020521 its reverse (125020211), we get a palindrome (237040732).

The spelling of 112020521 in words is "one hundred twelve million, twenty thousand, five hundred twenty-one".