123110340120 has 48 divisors (see below), whose sum is σ = 400108606560. Its totient is φ = 32829423936.

The previous prime is 123110340113. The next prime is 123110340149. The reversal of 123110340120 is 21043011321.

123110340120 is a `hidden beast` number, since 1 + 2 + 311 + 0 + 340 + 12 + 0 = 666.

It is a super-2 number, since 2×123110340120² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 123110340093 and 123110340102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170986224 + ... + 170986943.

It is an arithmetic number, because the mean of its divisors is an integer number (8335595970).

Almost surely, 2^123110340120 is an apocalyptic number.

123110340120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123110340120 is an abundant number, since it is smaller than the sum of its proper divisors (276998266440).

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

123110340120 is a wasteful number, since it uses less digits than its factorization.

123110340120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341973184 (or 341973177 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 123110340120 its reverse (21043011321), we get a palindrome (144153351441).

The spelling of 123110340120 in words is "one hundred twenty-three billion, one hundred ten million, three hundred forty thousand, one hundred twenty".