112120031 has 2 divisors, whose sum is σ = 112120032. Its totient is φ = 112120030.

The previous prime is 112119979. The next prime is 112120033. The reversal of 112120031 is 130021211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 112120031 - 2²⁶ = 45011167 is a prime.

It is a super-2 number, since 2×112120031² = 25141802702881922, which contains 22 as substring.

Together with 112120033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 112119994 and 112120021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112120033) 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 as a sum of consecutive naturals, namely, 56060015 + 56060016.

It is an arithmetic number, because the mean of its divisors is an integer number (56060016).

Almost surely, 2^112120031 is an apocalyptic number.

112120031 is a deficient number, since it is larger than the sum of its proper divisors (1).

112120031 is an equidigital number, since it uses as much as digits as its factorization.

112120031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 112120031 is about 10588.6746573875. The cubic root of 112120031 is about 482.2005888484.

Adding to 112120031 its reverse (130021211), we get a palindrome (242141242).

The spelling of 112120031 in words is "one hundred twelve million, one hundred twenty thousand, thirty-one".