123001112 has 16 divisors (see below), whose sum is σ = 248367840. Its totient is φ = 56769696.

The previous prime is 123001091. The next prime is 123001121. The reversal of 123001112 is 211100321.

It is a super-3 number, since 3×123001112³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123001093 and 123001102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591248 + ... + 591455.

It is an arithmetic number, because the mean of its divisors is an integer number (15522990).

Almost surely, 2^123001112 is an apocalyptic number.

It is an amenable number.

123001112 is an abundant number, since it is smaller than the sum of its proper divisors (125366728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123001112 is a wasteful number, since it uses less digits than its factorization.

123001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182722 (or 1182718 counting only the distinct ones).

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

The square root of 123001112 is about 11090.5866391278. The cubic root of 123001112 is about 497.3204820180.

Adding to 123001112 its reverse (211100321), we get a palindrome (334101433).

The spelling of 123001112 in words is "one hundred twenty-three million, one thousand, one hundred twelve".