112513321 has 4 divisors (see below), whose sum is σ = 112535892. Its totient is φ = 112490752.

The previous prime is 112513279. The next prime is 112513333. The reversal of 112513321 is 123315211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123315211 = 1627 ⋅75793.

It can be written as a sum of positive squares in 2 ways, for example, as 32661225 + 79852096 = 5715^2 + 8936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112513321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112513381) 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 in 3 ways as a sum of consecutive naturals, for example, 136 + ... + 15001.

It is an arithmetic number, because the mean of its divisors is an integer number (28133973).

Almost surely, 2^112513321 is an apocalyptic number.

It is an amenable number.

112513321 is a deficient number, since it is larger than the sum of its proper divisors (22571).

112513321 is an equidigital number, since it uses as much as digits as its factorization.

112513321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22570.

The product of its digits is 180, while the sum is 19.

The square root of 112513321 is about 10607.2296571725. The cubic root of 112513321 is about 482.7637453050.

Adding to 112513321 its reverse (123315211), we get a palindrome (235828532).

The spelling of 112513321 in words is "one hundred twelve million, five hundred thirteen thousand, three hundred twenty-one".