Adding to 123231210 its reverse (12132321), we get a palindrome (135363531).
It is a self number, because there is not a number n which added to its sum of digits gives 123231210.
It is an unprimeable number.
Almost surely, 2123231210 is an apocalyptic number.
123231210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
123231210 is a wasteful number, since it uses less digits than its factorization.
123231210 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4107717.
The square root of 123231210 is about 11100.9553642918. The cubic root of 123231210 is about 497.6304010756.
The spelling of 123231210 in words is "one hundred twenty-three million, two hundred thirty-one thousand, two hundred ten".