520003144000000 has 140 divisors (see below), whose sum is σ = 1298721717203922. Its totient is φ = 208001254400000.

The previous prime is 520003143999991. The next prime is 520003144000001. The reversal of 520003144000000 is 441300025.

It can be written as a sum of positive squares in 7 ways, for example, as 356157819156736 + 163845324843264 = 18872144^2 + 12800208^2 .

It is not an unprimeable number, because it can be changed into a prime (520003144000001) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 24500197 + ... + 40500196.

Almost surely, 2^{520003144000000} is an apocalyptic number.

520003144000000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

520003144000000 is an abundant number, since it is smaller than the sum of its proper divisors (778718573203922).

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

520003144000000 is an frugal number, since it uses more digits than its factorization.

520003144000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65000441 (or 65000400 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 520003144000000 its reverse (441300025), we get a palindrome (520003585300025).

The spelling of 520003144000000 in words is "five hundred twenty trillion, three billion, one hundred forty-four million", and thus it is an aban number.