112103123121 has 32 divisors (see below), whose sum is σ = 181211322240. Its totient is φ = 67928328000.

The previous prime is 112103123107. The next prime is 112103123141. The reversal of 112103123121 is 121321301211.

It is not a de Polignac number, because 112103123121 - 2⁷ = 112103122993 is a prime.

It is a super-2 number, since 2×112103123121² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 112103123094 and 112103123103.

It is not an unprimeable number, because it can be changed into a prime (112103123141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1657671 + ... + 1723971.

It is an arithmetic number, because the mean of its divisors is an integer number (5662853820).

Almost surely, 2^112103123121 is an apocalyptic number.

112103123121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112103123121 is a deficient number, since it is larger than the sum of its proper divisors (69108199119).

112103123121 is a wasteful number, since it uses less digits than its factorization.

112103123121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72014 (or 72008 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 112103123121 its reverse (121321301211), we get a palindrome (233424424332).

The spelling of 112103123121 in words is "one hundred twelve billion, one hundred three million, one hundred twenty-three thousand, one hundred twenty-one".