1204420141520 has 40 divisors (see below), whose sum is σ = 2800876944456. Its totient is φ = 481664811008.

The previous prime is 1204420141517. The next prime is 1204420141567. The reversal of 1204420141520 is 251410244021.

It can be written as a sum of positive squares in 4 ways, for example, as 587240211856 + 617179929664 = 766316^2 + 785608^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 1204420141520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1237037 + ... + 1984716.

Almost surely, 2^{1204420141520} is an apocalyptic number.

1204420141520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204420141520 is an abundant number, since it is smaller than the sum of its proper divisors (1596456802936).

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

1204420141520 is a wasteful number, since it uses less digits than its factorization.

1204420141520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3226439 (or 3226433 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 1204420141520 its reverse (251410244021), we get a palindrome (1455830385541).

The spelling of 1204420141520 in words is "one trillion, two hundred four billion, four hundred twenty million, one hundred forty-one thousand, five hundred twenty".