123320132 has 24 divisors (see below), whose sum is σ = 232990296. Its totient is φ = 56775168.

The previous prime is 123320117. The next prime is 123320137. The reversal of 123320132 is 231023321.

It can be written as a sum of positive squares in 4 ways, for example, as 14868736 + 108451396 = 3856^2 + 10414^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 123320132.

It is not an unprimeable number, because it can be changed into a prime (123320137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19778 + ... + 25254.

It is an arithmetic number, because the mean of its divisors is an integer number (9707929).

Almost surely, 2^123320132 is an apocalyptic number.

It is an amenable number.

123320132 is a deficient number, since it is larger than the sum of its proper divisors (109670164).

123320132 is a wasteful number, since it uses less digits than its factorization.

123320132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5927 (or 5925 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 123320132 is about 11104.9597928133. The cubic root of 123320132 is about 497.7500667872.

Adding to 123320132 its reverse (231023321), we get a palindrome (354343453).

The spelling of 123320132 in words is "one hundred twenty-three million, three hundred twenty thousand, one hundred thirty-two".