123342320 has 20 divisors (see below), whose sum is σ = 286771080. Its totient is φ = 49336896.

The previous prime is 123342301. The next prime is 123342379. The reversal of 123342320 is 23243321.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 123342292 and 123342301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 770810 + ... + 770969.

It is an arithmetic number, because the mean of its divisors is an integer number (14338554).

Almost surely, 2^123342320 is an apocalyptic number.

123342320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123342320 is an abundant number, since it is smaller than the sum of its proper divisors (163428760).

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

123342320 is a wasteful number, since it uses less digits than its factorization.

123342320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541792 (or 1541786 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 123342320 is about 11105.9587609535. The cubic root of 123342320 is about 497.7799170531.

Adding to 123342320 its reverse (23243321), we get a palindrome (146585641).

The spelling of 123342320 in words is "one hundred twenty-three million, three hundred forty-two thousand, three hundred twenty".