123234312 has 32 divisors (see below), whose sum is σ = 311990400. Its totient is φ = 40557504.

The previous prime is 123234227. The next prime is 123234313. The reversal of 123234312 is 213432321.

It is a super-2 number, since 2×123234312² = 30373391308226688, which contains 22 as substring.

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 (123234313) 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, 30603 + ... + 34394.

It is an arithmetic number, because the mean of its divisors is an integer number (9749700).

Almost surely, 2^123234312 is an apocalyptic number.

123234312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123234312 is an abundant number, since it is smaller than the sum of its proper divisors (188756088).

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

123234312 is a wasteful number, since it uses less digits than its factorization.

123234312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65085 (or 65081 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 123234312 is about 11101.0950811170. The cubic root of 123234312 is about 497.6345765237.

Adding to 123234312 its reverse (213432321), we get a palindrome (336666633).

The spelling of 123234312 in words is "one hundred twenty-three million, two hundred thirty-four thousand, three hundred twelve".