112001213 has 4 divisors (see below), whose sum is σ = 112055388. Its totient is φ = 111947040.

The previous prime is 112001209. The next prime is 112001231. The reversal of 112001213 is 312100211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312100211 = 1913 ⋅163147.

It can be written as a sum of positive squares in 2 ways, for example, as 27857284 + 84143929 = 5278^2 + 9173^2 .

It is a cyclic number.

It is not a de Polignac number, because 112001213 - 2² = 112001209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112001194 and 112001203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112001413) 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, 23858 + ... + 28163.

It is an arithmetic number, because the mean of its divisors is an integer number (28013847).

Almost surely, 2^112001213 is an apocalyptic number.

It is an amenable number.

112001213 is a deficient number, since it is larger than the sum of its proper divisors (54175).

112001213 is an equidigital number, since it uses as much as digits as its factorization.

112001213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54174.

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

The square root of 112001213 is about 10583.0625529664. The cubic root of 112001213 is about 482.0301930089.

Adding to 112001213 its reverse (312100211), we get a palindrome (424101424).

The spelling of 112001213 in words is "one hundred twelve million, one thousand, two hundred thirteen".