112121431121 has 8 divisors (see below), whose sum is σ = 128186382144. Its totient is φ = 96068381040.

The previous prime is 112121431109. The next prime is 112121431141. The reversal of 112121431121 is 121134121211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 112121431121 - 2²² = 112117236817 is a prime.

It is a super-2 number, since 2×112121431121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 112121431093 and 112121431102.

It is not an unprimeable number, because it can be changed into a prime (112121431141) 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 7 ways as a sum of consecutive naturals, for example, 2955035 + ... + 2992736.

It is an arithmetic number, because the mean of its divisors is an integer number (16023297768).

Almost surely, 2^112121431121 is an apocalyptic number.

It is an amenable number.

112121431121 is a deficient number, since it is larger than the sum of its proper divisors (16064951023).

112121431121 is an equidigital number, since it uses as much as digits as its factorization.

112121431121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5950471.

The product of its digits is 96, while the sum is 20.

Adding to 112121431121 its reverse (121134121211), we get a palindrome (233255552332).

The spelling of 112121431121 in words is "one hundred twelve billion, one hundred twenty-one million, four hundred thirty-one thousand, one hundred twenty-one".