123344140 has 12 divisors (see below), whose sum is σ = 259022736. Its totient is φ = 49337648.

The previous prime is 123344099. The next prime is 123344141. The reversal of 123344140 is 41443321.

It is not an unprimeable number, because it can be changed into a prime (123344141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3083584 + ... + 3083623.

It is an arithmetic number, because the mean of its divisors is an integer number (21585228).

Almost surely, 2^123344140 is an apocalyptic number.

123344140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123344140 is an abundant number, since it is smaller than the sum of its proper divisors (135678596).

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

123344140 is a wasteful number, since it uses less digits than its factorization.

123344140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6167216 (or 6167214 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 123344140 is about 11106.0406986468. The cubic root of 123344140 is about 497.7823654017.

Adding to 123344140 its reverse (41443321), we get a palindrome (164787461).

The spelling of 123344140 in words is "one hundred twenty-three million, three hundred forty-four thousand, one hundred forty".