123971112 has 48 divisors (see below), whose sum is σ = 340498080. Its totient is φ = 40740000.

The previous prime is 123971083. The next prime is 123971153. The reversal of 123971112 is 211179321.

It is a super-2 number, since 2×123971112² = 30737673221033088, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 7014 + ... + 17237.

It is an arithmetic number, because the mean of its divisors is an integer number (7093710).

Almost surely, 2^123971112 is an apocalyptic number.

123971112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123971112 is an abundant number, since it is smaller than the sum of its proper divisors (216526968).

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

123971112 is a wasteful number, since it uses less digits than its factorization.

123971112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24334 (or 24327 counting only the distinct ones).

The product of its digits is 756, while the sum is 27.

The square root of 123971112 is about 11134.2315406138. The cubic root of 123971112 is about 498.6243680779.

The spelling of 123971112 in words is "one hundred twenty-three million, nine hundred seventy-one thousand, one hundred twelve".