10520542405420 has 48 divisors (see below), whose sum is σ = 23265631872000. Its totient is φ = 3985069682880.

The previous prime is 10520542405391. The next prime is 10520542405463. The reversal of 10520542405420 is 2450424502501.

It is a super-2 number, since 2×10520542405420² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4858626 + ... + 6681865.

It is an arithmetic number, because the mean of its divisors is an integer number (484700664000).

Almost surely, 2^{10520542405420} is an apocalyptic number.

10520542405420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10520542405420 is an abundant number, since it is smaller than the sum of its proper divisors (12745089466580).

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

10520542405420 is a wasteful number, since it uses less digits than its factorization.

10520542405420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11542918 (or 11542916 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 34.

Adding to 10520542405420 its reverse (2450424502501), we get a palindrome (12970966907921).

The spelling of 10520542405420 in words is "ten trillion, five hundred twenty billion, five hundred forty-two million, four hundred five thousand, four hundred twenty".