123113232 has 60 divisors (see below), whose sum is σ = 375873264. Its totient is φ = 37306560.

The previous prime is 123113231. The next prime is 123113251. The reversal of 123113232 is 232311321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (123113231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37278 + ... + 40445.

Almost surely, 2^123113232 is an apocalyptic number.

123113232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123113232 is an abundant number, since it is smaller than the sum of its proper divisors (252760032).

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

123113232 is a wasteful number, since it uses less digits than its factorization.

123113232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77748 (or 77739 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 123113232 is about 11095.6402248811. The cubic root of 123113232 is about 497.4715447139.

Adding to 123113232 its reverse (232311321), we get a palindrome (355424553).

The spelling of 123113232 in words is "one hundred twenty-three million, one hundred thirteen thousand, two hundred thirty-two".