1320143812000 has 96 divisors (see below), whose sum is σ = 3493100664144. Its totient is φ = 487437696000.

The previous prime is 1320143811979. The next prime is 1320143812033. The reversal of 1320143812000 is 2183410231.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 142337180176 + 1177806631824 = 377276^2 + 1085268^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12641691 + ... + 12745690.

Almost surely, 2^{1320143812000} is an apocalyptic number.

1320143812000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320143812000 is an abundant number, since it is smaller than the sum of its proper divisors (2172956852144).

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

1320143812000 is a wasteful number, since it uses less digits than its factorization.

1320143812000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25387419 (or 25387401 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 1320143812000 in words is "one trillion, three hundred twenty billion, one hundred forty-three million, eight hundred twelve thousand".