10520300240 has 20 divisors (see below), whose sum is σ = 24459698244. Its totient is φ = 4208120064.

The previous prime is 10520300237. The next prime is 10520300251. The reversal of 10520300240 is 4200302501.

It can be written as a sum of positive squares in 2 ways, for example, as 8336420416 + 2183879824 = 91304^2 + 46732^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×10520300240² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65751797 + ... + 65751956.

Almost surely, 2^10520300240 is an apocalyptic number.

10520300240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10520300240 is an abundant number, since it is smaller than the sum of its proper divisors (13939398004).

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

10520300240 is a wasteful number, since it uses less digits than its factorization.

10520300240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131503766 (or 131503760 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

Adding to 10520300240 its reverse (4200302501), we get a palindrome (14720602741).

The spelling of 10520300240 in words is "ten billion, five hundred twenty million, three hundred thousand, two hundred forty".