1325530240000 has 440 divisors, whose sum is σ = 3469782514176. Its totient is φ = 505344000000.

The previous prime is 1325530239959. The next prime is 1325530240009. The reversal of 1325530240000 is 420355231.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325530240009) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1408639530 + ... + 1408640470.

Almost surely, 2^{1325530240000} is an apocalyptic number.

1325530240000 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 1325530240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1734891257088).

1325530240000 is an abundant number, since it is smaller than the sum of its proper divisors (2144252274176).

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

1325530240000 is an frugal number, since it uses more digits than its factorization.

1325530240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083 (or 1050 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 1325530240000 its reverse (420355231), we get a palindrome (1325950595231).

The spelling of 1325530240000 in words is "one trillion, three hundred twenty-five billion, five hundred thirty million, two hundred forty thousand".