1320323112 has 64 divisors (see below), whose sum is σ = 3671841600. Its totient is φ = 439594560.

The previous prime is 1320323023. The next prime is 1320323141. The reversal of 1320323112 is 2113230231.

1320323112 is a `hidden beast` number, since 1 + 320 + 32 + 311 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 212287 + ... + 218417.

It is an arithmetic number, because the mean of its divisors is an integer number (57372525).

Almost surely, 2^1320323112 is an apocalyptic number.

1320323112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1320323112 is an abundant number, since it is smaller than the sum of its proper divisors (2351518488).

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

1320323112 is a wasteful number, since it uses less digits than its factorization.

1320323112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7143 (or 7133 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1320323112 is about 36336.2506596374. The cubic root of 1320323112 is about 1097.0508085791.

Adding to 1320323112 its reverse (2113230231), we get a palindrome (3433553343).

It can be divided in two parts, 13203 and 23112, that added together give a triangular number (36315 = T₂₆₉).

The spelling of 1320323112 in words is "one billion, three hundred twenty million, three hundred twenty-three thousand, one hundred twelve".