1320020131312 has 20 divisors (see below), whose sum is σ = 2577062207016. Its totient is φ = 654971819840.

The previous prime is 1320020131291. The next prime is 1320020131321. The reversal of 1320020131312 is 2131310200231.

It is a self number, because there is not a number n which added to its sum of digits gives 1320020131312.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 314888203 + ... + 314892394.

Almost surely, 2^{1320020131312} is an apocalyptic number.

It is an amenable number.

1320020131312 is a deficient number, since it is larger than the sum of its proper divisors (1257042075704).

1320020131312 is a wasteful number, since it uses less digits than its factorization.

1320020131312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629780736 (or 629780730 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1320020131312 its reverse (2131310200231), we get a palindrome (3451330331543).

The spelling of 1320020131312 in words is "one trillion, three hundred twenty billion, twenty million, one hundred thirty-one thousand, three hundred twelve".