1323404012 has 96 divisors (see below), whose sum is σ = 2843688960. Its totient is φ = 526901760.

The previous prime is 1323403997. The next prime is 1323404057. The reversal of 1323404012 is 2104043231.

It is a super-2 number, since 2×1323404012² = 3502796357955392288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2858093 + ... + 2858555.

It is an arithmetic number, because the mean of its divisors is an integer number (29621760).

Almost surely, 2^1323404012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1323404012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1421844480).

1323404012 is an abundant number, since it is smaller than the sum of its proper divisors (1520284948).

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

1323404012 is a wasteful number, since it uses less digits than its factorization.

1323404012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1323404012 is about 36378.6202597075. The cubic root of 1323404012 is about 1097.9034479241.

Adding to 1323404012 its reverse (2104043231), we get a palindrome (3427447243).

The spelling of 1323404012 in words is "one billion, three hundred twenty-three million, four hundred four thousand, twelve".