1233423312 has 120 divisors (see below), whose sum is σ = 3526098720. Its totient is φ = 368448000.

The previous prime is 1233423283. The next prime is 1233423337. The reversal of 1233423312 is 2133243321.

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5386014 + ... + 5386242.

It is an arithmetic number, because the mean of its divisors is an integer number (29384156).

Almost surely, 2^1233423312 is an apocalyptic number.

1233423312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1233423312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1763049360).

1233423312 is an abundant number, since it is smaller than the sum of its proper divisors (2292675408).

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

1233423312 is a wasteful number, since it uses less digits than its factorization.

1233423312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 346 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

The square root of 1233423312 is about 35120.1268790419. The cubic root of 1233423312 is about 1072.4343537609.

Adding to 1233423312 its reverse (2133243321), we get a palindrome (3366666633).

Subtracting 1233423312 from its reverse (2133243321), we obtain a square (899820009 = 29997²).

The spelling of 1233423312 in words is "one billion, two hundred thirty-three million, four hundred twenty-three thousand, three hundred twelve".