112513124021 has 2 divisors, whose sum is σ = 112513124022. Its totient is φ = 112513124020.

The previous prime is 112513123993. The next prime is 112513124041. The reversal of 112513124021 is 120421315211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57895096996 + 54618027025 = 240614^2 + 233705^2 .

It is a cyclic number.

It is not a de Polignac number, because 112513124021 - 2³⁴ = 95333254837 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112513124041) 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, 56256562010 + 56256562011.

It is an arithmetic number, because the mean of its divisors is an integer number (56256562011).

Almost surely, 2^112513124021 is an apocalyptic number.

It is an amenable number.

112513124021 is a deficient number, since it is larger than the sum of its proper divisors (1).

112513124021 is an equidigital number, since it uses as much as digits as its factorization.

112513124021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 112513124021 its reverse (120421315211), we get a palindrome (232934439232).

The spelling of 112513124021 in words is "one hundred twelve billion, five hundred thirteen million, one hundred twenty-four thousand, twenty-one".