112231213 has 2 divisors, whose sum is σ = 112231214. Its totient is φ = 112231212.

The previous prime is 112231211. The next prime is 112231279. The reversal of 112231213 is 312132211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95609284 + 16621929 = 9778^2 + 4077^2 .

It is a cyclic number.

It is not a de Polignac number, because 112231213 - 2¹ = 112231211 is a prime.

Together with 112231211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112231211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56115606 + 56115607.

It is an arithmetic number, because the mean of its divisors is an integer number (56115607).

Almost surely, 2^112231213 is an apocalyptic number.

It is an amenable number.

112231213 is a deficient number, since it is larger than the sum of its proper divisors (1).

112231213 is an equidigital number, since it uses as much as digits as its factorization.

112231213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72, while the sum is 16.

The square root of 112231213 is about 10593.9233997608. The cubic root of 112231213 is about 482.3599249753.

Adding to 112231213 its reverse (312132211), we get a palindrome (424363424).

The spelling of 112231213 in words is "one hundred twelve million, two hundred thirty-one thousand, two hundred thirteen".