123322432140 has 144 divisors (see below), whose sum is σ = 390529339200. Its totient is φ = 31460534784.

The previous prime is 123322432069. The next prime is 123322432153. The reversal of 123322432140 is 41234223321.

123322432140 is a `hidden beast` number, since 1 + 2 + 332 + 2 + 4 + 321 + 4 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 460609 + ... + 677351.

It is an arithmetic number, because the mean of its divisors is an integer number (2712009300).

Almost surely, 2^123322432140 is an apocalyptic number.

123322432140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123322432140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195264669600).

123322432140 is an abundant number, since it is smaller than the sum of its proper divisors (267206907060).

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

123322432140 is a wasteful number, since it uses less digits than its factorization.

123322432140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216896 (or 216891 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 123322432140 its reverse (41234223321), we get a palindrome (164556655461).

The spelling of 123322432140 in words is "one hundred twenty-three billion, three hundred twenty-two million, four hundred thirty-two thousand, one hundred forty".