112120442131 has 4 divisors (see below), whose sum is σ = 112791822192. Its totient is φ = 111449062072.

The previous prime is 112120442123. The next prime is 112120442179. The reversal of 112120442131 is 131244021211.

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 112120442131 - 2³ = 112120442123 is a prime.

It is a super-2 number, since 2×112120442131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112120442111) 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, 335689780 + ... + 335690113.

It is an arithmetic number, because the mean of its divisors is an integer number (28197955548).

Almost surely, 2^112120442131 is an apocalyptic number.

112120442131 is a deficient number, since it is larger than the sum of its proper divisors (671380061).

112120442131 is an equidigital number, since it uses as much as digits as its factorization.

112120442131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671380060.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 112120442131 its reverse (131244021211), we get a palindrome (243364463342).

The spelling of 112120442131 in words is "one hundred twelve billion, one hundred twenty million, four hundred forty-two thousand, one hundred thirty-one".