112220231312131 has 4 divisors (see below), whose sum is σ = 114957310124664. Its totient is φ = 109483152499600.

The previous prime is 112220231312117. The next prime is 112220231312177. The reversal of 112220231312131 is 131213132022211.

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

It is a cyclic number.

It is not a de Polignac number, because 112220231312131 - 2⁷ = 112220231312003 is a prime.

It is a super-2 number, since 2×112220231312131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112220231312096 and 112220231312105.

It is not an unprimeable number, because it can be changed into a prime (112220231318131) 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 3 ways as a sum of consecutive naturals, for example, 1368539406205 + ... + 1368539406286.

It is an arithmetic number, because the mean of its divisors is an integer number (28739327531166).

Almost surely, 2^{112220231312131} is an apocalyptic number.

112220231312131 is a deficient number, since it is larger than the sum of its proper divisors (2737078812533).

112220231312131 is an equidigital number, since it uses as much as digits as its factorization.

112220231312131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737078812532.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 112220231312131 its reverse (131213132022211), we get a palindrome (243433363334342).

The spelling of 112220231312131 in words is "one hundred twelve trillion, two hundred twenty billion, two hundred thirty-one million, three hundred twelve thousand, one hundred thirty-one".