1323322000 has 320 divisors, whose sum is σ = 4302724608. Its totient is φ = 380160000.

The previous prime is 1323321991. The next prime is 1323322003. The reversal of 1323322000 is 2233231.

It is a super-2 number, since 2×1323322000² = 3502362231368000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1323322003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2001670 + ... + 2002330.

Almost surely, 2^1323322000 is an apocalyptic number.

1323322000 is a gapful number since it is divisible by the number (10) 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 1323322000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2151362304).

1323322000 is an abundant number, since it is smaller than the sum of its proper divisors (2979402608).

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

1323322000 is a wasteful number, since it uses less digits than its factorization.

1323322000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715 (or 699 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 1323322000 is about 36377.4930417147. The cubic root of 1323322000 is about 1097.8807682494.

Adding to 1323322000 its reverse (2233231), we get a palindrome (1325555231).

It can be divided in two parts, 1323 and 322000, that added together give a palindrome (323323).

The spelling of 1323322000 in words is "one billion, three hundred twenty-three million, three hundred twenty-two thousand".