1323030312 has 96 divisors (see below), whose sum is σ = 3770119080. Its totient is φ = 418590720.

The previous prime is 1323030299. The next prime is 1323030347. The reversal of 1323030312 is 2130303231.

1323030312 is a `hidden beast` number, since 1 + 323 + 0 + 30 + 312 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 965593476 + 357436836 = 31074^2 + 18906^2 .

It is a super-3 number, since 3×1323030312³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 103168 + ... + 115280.

Almost surely, 2^1323030312 is an apocalyptic number.

1323030312 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 1323030312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1885059540).

1323030312 is an abundant number, since it is smaller than the sum of its proper divisors (2447088768).

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

1323030312 is a wasteful number, since it uses less digits than its factorization.

1323030312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12203 (or 12196 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1323030312 is about 36373.4836384969. The cubic root of 1323030312 is about 1097.8000969848.

Adding to 1323030312 its reverse (2130303231), we get a palindrome (3453333543).

The spelling of 1323030312 in words is "one billion, three hundred twenty-three million, thirty thousand, three hundred twelve".