1204520240000 has 320 divisors, whose sum is σ = 3738505795200. Its totient is φ = 375432960000.

The previous prime is 1204520239987. The next prime is 1204520240069. The reversal of 1204520240000 is 420254021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (320).

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 polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6062231 + ... + 6257769.

It is an arithmetic number, because the mean of its divisors is an integer number (11682830610).

Almost surely, 2^{1204520240000} is an apocalyptic number.

1204520240000 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 1204520240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1869252897600).

1204520240000 is an abundant number, since it is smaller than the sum of its proper divisors (2533985555200).

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

1204520240000 is an equidigital number, since it uses as much as digits as its factorization.

1204520240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195591 (or 195564 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 1204520240000 its reverse (420254021), we get a palindrome (1204940494021).

The spelling of 1204520240000 in words is "one trillion, two hundred four billion, five hundred twenty million, two hundred forty thousand".