1323003120 has 80 divisors (see below), whose sum is σ = 4233633792. Its totient is φ = 341418240.

The previous prime is 1323003107. The next prime is 1323003133. The reversal of 1323003120 is 213003231.

It is an interprime number because it is at equal distance from previous prime (1323003107) and next prime (1323003133).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1323003120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81472 + ... + 96351.

Almost surely, 2^1323003120 is an apocalyptic number.

1323003120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323003120 is an abundant number, since it is smaller than the sum of its proper divisors (2910630672).

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

1323003120 is a wasteful number, since it uses less digits than its factorization.

1323003120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177870 (or 177864 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1323003120 is about 36373.1098477983. The cubic root of 1323003120 is about 1097.7925759717.

Adding to 1323003120 its reverse (213003231), we get a palindrome (1536006351).

The spelling of 1323003120 in words is "one billion, three hundred twenty-three million, three thousand, one hundred twenty".