1323323120 has 40 divisors (see below), whose sum is σ = 3516260064. Its totient is φ = 453710592.

The previous prime is 1323323021. The next prime is 1323323137. The reversal of 1323323120 is 213233231.

It is a tau number, because it is divible by the number of its divisors (40).

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

It is a junction number, because it is equal to n+sod(n) for n = 1323323092 and 1323323101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1180979 + ... + 1182098.

Almost surely, 2^1323323120 is an apocalyptic number.

1323323120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323323120 is an abundant number, since it is smaller than the sum of its proper divisors (2192936944).

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

1323323120 is a wasteful number, since it uses less digits than its factorization.

1323323120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2363097 (or 2363091 counting only the distinct ones).

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

The square root of 1323323120 is about 36377.5084358454. The cubic root of 1323323120 is about 1097.8810779815.

Adding to 1323323120 its reverse (213233231), we get a palindrome (1536556351).

The spelling of 1323323120 in words is "one billion, three hundred twenty-three million, three hundred twenty-three thousand, one hundred twenty".