1530501320000 has 140 divisors (see below), whose sum is σ = 3797936486916. Its totient is φ = 611750400000.

The previous prime is 1530501319877. The next prime is 1530501320039. The reversal of 1530501320000 is 231050351.

It can be written as a sum of positive squares in 10 ways, for example, as 1272347904256 + 258153415744 = 1127984^2 + 508088^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 57306650 + ... + 57333350.

Almost surely, 2^{1530501320000} is an apocalyptic number.

1530501320000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1530501320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1898968243458).

1530501320000 is an abundant number, since it is smaller than the sum of its proper divisors (2267435166916).

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

1530501320000 is an equidigital number, since it uses as much as digits as its factorization.

1530501320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28166 (or 28141 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

Adding to 1530501320000 its reverse (231050351), we get a palindrome (1530732370351).

The spelling of 1530501320000 in words is "one trillion, five hundred thirty billion, five hundred one million, three hundred twenty thousand".