112331212013 has 4 divisors (see below), whose sum is σ = 112653078300. Its totient is φ = 112009345728.

The previous prime is 112331211991. The next prime is 112331212027. The reversal of 112331212013 is 310212133211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310212133211 = 11251 ⋅27571961.

It can be written as a sum of positive squares in 2 ways, for example, as 76353847684 + 35977364329 = 276322^2 + 189677^2 .

It is a cyclic number.

It is not a de Polignac number, because 112331212013 - 2⁸ = 112331211757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112331212033) 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, 160932620 + ... + 160933317.

It is an arithmetic number, because the mean of its divisors is an integer number (28163269575).

Almost surely, 2^112331212013 is an apocalyptic number.

It is an amenable number.

112331212013 is a deficient number, since it is larger than the sum of its proper divisors (321866287).

112331212013 is an equidigital number, since it uses as much as digits as its factorization.

112331212013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321866286.

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

Adding to 112331212013 its reverse (310212133211), we get a palindrome (422543345224).

The spelling of 112331212013 in words is "one hundred twelve billion, three hundred thirty-one million, two hundred twelve thousand, thirteen".