112031123213 has 16 divisors (see below), whose sum is σ = 113368967280. Its totient is φ = 110703673344.

The previous prime is 112031123203. The next prime is 112031123219. The reversal of 112031123213 is 312321130211.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 18549895204 + 93481228009 = 136198^2 + 305747^2 .

It is a cyclic number.

It is not a de Polignac number, because 112031123213 - 2¹² = 112031119117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112031123219) 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 in 15 ways as a sum of consecutive naturals, for example, 18323645 + ... + 18329757.

It is an arithmetic number, because the mean of its divisors is an integer number (7085560455).

Almost surely, 2^112031123213 is an apocalyptic number.

It is an amenable number.

112031123213 is a deficient number, since it is larger than the sum of its proper divisors (1337844067).

112031123213 is a wasteful number, since it uses less digits than its factorization.

112031123213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6928.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 112031123213 its reverse (312321130211), we get a palindrome (424352253424).

The spelling of 112031123213 in words is "one hundred twelve billion, thirty-one million, one hundred twenty-three thousand, two hundred thirteen".