123116860 has 24 divisors (see below), whose sum is σ = 258826176. Its totient is φ = 49193280.

The previous prime is 123116843. The next prime is 123116867. The reversal of 123116860 is 68611321.

It is a super-2 number, since 2×123116860² = 30315522432519200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123116867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19270 + ... + 24850.

It is an arithmetic number, because the mean of its divisors is an integer number (10784424).

Almost surely, 2^123116860 is an apocalyptic number.

123116860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123116860 is an abundant number, since it is smaller than the sum of its proper divisors (135709316).

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

123116860 is a wasteful number, since it uses less digits than its factorization.

123116860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6693 (or 6691 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 123116860 is about 11095.8037113136. The cubic root of 123116860 is about 497.4764312968.

The spelling of 123116860 in words is "one hundred twenty-three million, one hundred sixteen thousand, eight hundred sixty".