112131223313 has 4 divisors (see below), whose sum is σ = 112620879540. Its totient is φ = 111641567088.

The previous prime is 112131223307. The next prime is 112131223439. The reversal of 112131223313 is 313322131211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54834183889 + 57297039424 = 234167^2 + 239368^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112131223313 is a prime.

It is a super-2 number, since 2×112131223313² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (112131229313) 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, 244827770 + ... + 244828227.

It is an arithmetic number, because the mean of its divisors is an integer number (28155219885).

Almost surely, 2^112131223313 is an apocalyptic number.

It is an amenable number.

112131223313 is a deficient number, since it is larger than the sum of its proper divisors (489656227).

112131223313 is an equidigital number, since it uses as much as digits as its factorization.

112131223313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489656226.

The product of its digits is 648, while the sum is 23.

Adding to 112131223313 its reverse (313322131211), we get a palindrome (425453354524).

The spelling of 112131223313 in words is "one hundred twelve billion, one hundred thirty-one million, two hundred twenty-three thousand, three hundred thirteen".