112120013 has 4 divisors (see below), whose sum is σ = 113958108. Its totient is φ = 110281920.

The previous prime is 112119979. The next prime is 112120031. The reversal of 112120013 is 310021211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310021211 = 509 ⋅609079.

It can be written as a sum of positive squares in 2 ways, for example, as 23251684 + 88868329 = 4822^2 + 9427^2 .

It is a cyclic number.

It is not a de Polignac number, because 112120013 - 2⁸ = 112119757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112119976 and 112120003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112120033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918956 + ... + 919077.

It is an arithmetic number, because the mean of its divisors is an integer number (28489527).

Almost surely, 2^112120013 is an apocalyptic number.

It is an amenable number.

112120013 is a deficient number, since it is larger than the sum of its proper divisors (1838095).

112120013 is an equidigital number, since it uses as much as digits as its factorization.

112120013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838094.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 112120013 is about 10588.6738074227. The cubic root of 112120013 is about 482.2005630439.

Adding to 112120013 its reverse (310021211), we get a palindrome (422141224).

The spelling of 112120013 in words is "one hundred twelve million, one hundred twenty thousand, thirteen".