1323313400 has 24 divisors (see below), whose sum is σ = 3076704120. Its totient is φ = 529325280.

The previous prime is 1323313373. The next prime is 1323313403. The reversal of 1323313400 is 43133231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323313403) 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, 3308084 + ... + 3308483.

It is an arithmetic number, because the mean of its divisors is an integer number (128196005).

Almost surely, 2^1323313400 is an apocalyptic number.

1323313400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323313400 is an abundant number, since it is smaller than the sum of its proper divisors (1753390720).

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

1323313400 is a wasteful number, since it uses less digits than its factorization.

1323313400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6616583 (or 6616574 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1323313400 is about 36377.3748365657. The cubic root of 1323313400 is about 1097.8783899431.

Adding to 1323313400 its reverse (43133231), we get a palindrome (1366446631).

The spelling of 1323313400 in words is "one billion, three hundred twenty-three million, three hundred thirteen thousand, four hundred".