1323144432 has 30 divisors (see below), whose sum is σ = 3702967112. Its totient is φ = 441048096.

The previous prime is 1323144413. The next prime is 1323144451. The reversal of 1323144432 is 2344413231.

It is an interprime number because it is at equal distance from previous prime (1323144413) and next prime (1323144451).

It is a super-2 number, since 2×1323144432² = 3501422375865205248, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 1323144396 and 1323144405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4594108 + ... + 4594395.

Almost surely, 2^1323144432 is an apocalyptic number.

1323144432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1323144432 is an abundant number, since it is smaller than the sum of its proper divisors (2379822680).

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

1323144432 is a wasteful number, since it uses less digits than its factorization.

1323144432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9188517 (or 9188508 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 1323144432 is about 36375.0523298593. The cubic root of 1323144432 is about 1097.8316602186.

Adding to 1323144432 its reverse (2344413231), we get a palindrome (3667557663).

The spelling of 1323144432 in words is "one billion, three hundred twenty-three million, one hundred forty-four thousand, four hundred thirty-two".