1320312120 has 64 divisors (see below), whose sum is σ = 3963457440. Its totient is φ = 351859200.

The previous prime is 1320312113. The next prime is 1320312143. The reversal of 1320312120 is 212130231.

1320312120 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 1320312120.

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, 283410 + ... + 288030.

Almost surely, 2^1320312120 is an apocalyptic number.

1320312120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320312120 is an abundant number, since it is smaller than the sum of its proper divisors (2643145320).

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

1320312120 is a wasteful number, since it uses less digits than its factorization.

1320312120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7016 (or 7012 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1320312120 is about 36336.0994054122. The cubic root of 1320312120 is about 1097.0477641688.

Adding to 1320312120 its reverse (212130231), we get a palindrome (1532442351).

The spelling of 1320312120 in words is "one billion, three hundred twenty million, three hundred twelve thousand, one hundred twenty".