123512232 has 16 divisors (see below), whose sum is σ = 308780640. Its totient is φ = 41170736.

The previous prime is 123512227. The next prime is 123512243. The reversal of 123512232 is 232215321.

It is a junction number, because it is equal to n+sod(n) for n = 123512199 and 123512208.

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, 2573148 + ... + 2573195.

It is an arithmetic number, because the mean of its divisors is an integer number (19298790).

Almost surely, 2^123512232 is an apocalyptic number.

123512232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123512232 is an abundant number, since it is smaller than the sum of its proper divisors (185268408).

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

123512232 is a wasteful number, since it uses less digits than its factorization.

123512232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5146352 (or 5146348 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 123512232 is about 11113.6057155183. The cubic root of 123512232 is about 498.0083868203.

Adding to 123512232 its reverse (232215321), we get a palindrome (355727553).

The spelling of 123512232 in words is "one hundred twenty-three million, five hundred twelve thousand, two hundred thirty-two".