123232560 has 80 divisors (see below), whose sum is σ = 416759040. Its totient is φ = 29873920.

The previous prime is 123232559. The next prime is 123232573. The reversal of 123232560 is 65232321.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 123232560.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20700 + ... + 25979.

It is an arithmetic number, because the mean of its divisors is an integer number (5209488).

Almost surely, 2^123232560 is an apocalyptic number.

123232560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123232560 is an abundant number, since it is smaller than the sum of its proper divisors (293526480).

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

123232560 is a wasteful number, since it uses less digits than its factorization.

123232560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46706 (or 46700 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 123232560 is about 11101.0161697027. The cubic root of 123232560 is about 497.6322182521.

Adding to 123232560 its reverse (65232321), we get a palindrome (188464881).

The spelling of 123232560 in words is "one hundred twenty-three million, two hundred thirty-two thousand, five hundred sixty".