1323132400 has 30 divisors (see below), whose sum is σ = 3178826552. Its totient is φ = 529252800.

The previous prime is 1323132383. The next prime is 1323132401. The reversal of 1323132400 is 42313231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323132401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1653516 + ... + 1654315.

Almost surely, 2^1323132400 is an apocalyptic number.

1323132400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323132400 is an abundant number, since it is smaller than the sum of its proper divisors (1855694152).

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

1323132400 is a wasteful number, since it uses less digits than its factorization.

1323132400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3307849 (or 3307838 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1323132400 is about 36374.8869414051. The cubic root of 1323132400 is about 1097.8283325016.

Adding to 1323132400 its reverse (42313231), we get a palindrome (1365445631).

The spelling of 1323132400 in words is "one billion, three hundred twenty-three million, one hundred thirty-two thousand, four hundred".