1320511320000 has 210 divisors, whose sum is σ = 4729746377928. Its totient is φ = 352136256000.

The previous prime is 1320511319969. The next prime is 1320511320013. The reversal of 1320511320000 is 231150231.

1320511320000 is a `hidden beast` number, since 132 + 0 + 511 + 3 + 20 + 0 + 0 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1474044 + ... + 2194043.

Almost surely, 2^{1320511320000} is an apocalyptic number.

1320511320000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320511320000 is an abundant number, since it is smaller than the sum of its proper divisors (3409235057928).

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

1320511320000 is an equidigital number, since it uses as much as digits as its factorization.

1320511320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3668125 (or 3668097 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

Adding to 1320511320000 its reverse (231150231), we get a palindrome (1320742470231).

The spelling of 1320511320000 in words is "one trillion, three hundred twenty billion, five hundred eleven million, three hundred twenty thousand".