1323220002 has 32 divisors (see below), whose sum is σ = 3000016320. Its totient is φ = 385715520.

The previous prime is 1323219977. The next prime is 1323220009. The reversal of 1323220002 is 2000223231.

It is a super-2 number, since 2×1323220002² = 3501822347385760008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1323220009) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 444949 + ... + 447912.

It is an arithmetic number, because the mean of its divisors is an integer number (93750510).

Almost surely, 2^1323220002 is an apocalyptic number.

1323220002 is an abundant number, since it is smaller than the sum of its proper divisors (1676796318).

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

1323220002 is a wasteful number, since it uses less digits than its factorization.

1323220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892898.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1323220002 is about 36376.0910764200. The cubic root of 1323220002 is about 1097.8525603202.

Adding to 1323220002 its reverse (2000223231), we get a palindrome (3323443233).

The spelling of 1323220002 in words is "one billion, three hundred twenty-three million, two hundred twenty thousand, two".