1230333312 has 128 divisors (see below), whose sum is σ = 3540468960. Its totient is φ = 376307712.

The previous prime is 1230333283. The next prime is 1230333317. The reversal of 1230333312 is 2133330321.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230333317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 962818 + ... + 964094.

Almost surely, 2^1230333312 is an apocalyptic number.

1230333312 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 1230333312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1770234480).

1230333312 is an abundant number, since it is smaller than the sum of its proper divisors (2310135648).

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

1230333312 is a wasteful number, since it uses less digits than its factorization.

1230333312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500 (or 1488 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 1230333312 is about 35076.1074237151. The cubic root of 1230333312 is about 1071.5380425848.

Adding to 1230333312 its reverse (2133330321), we get a palindrome (3363663633).

The spelling of 1230333312 in words is "one billion, two hundred thirty million, three hundred thirty-three thousand, three hundred twelve".