123213230 has 32 divisors (see below), whose sum is σ = 253946880. Its totient is φ = 42164640.

The previous prime is 123213203. The next prime is 123213247. The reversal of 123213230 is 32312321.

It is a junction number, because it is equal to n+sod(n) for n = 123213199 and 123213208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44795 + ... + 47465.

It is an arithmetic number, because the mean of its divisors is an integer number (7935840).

Almost surely, 2^123213230 is an apocalyptic number.

123213230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123213230 is an abundant number, since it is smaller than the sum of its proper divisors (130733650).

123213230 is a wasteful number, since it uses less digits than its factorization.

123213230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3344.

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

The square root of 123213230 is about 11100.1454945420. The cubic root of 123213230 is about 497.6061977108.

Adding to 123213230 its reverse (32312321), we get a palindrome (155525551).

Subtracting from 123213230 its reverse (32312321), we obtain a palindrome (90900909).

It can be divided in two parts, 12321 and 3230, that added together give a palindrome (15551).

The spelling of 123213230 in words is "one hundred twenty-three million, two hundred thirteen thousand, two hundred thirty".