10520245128 has 128 divisors (see below), whose sum is σ = 28298880000. Its totient is φ = 3249227520.

The previous prime is 10520245121. The next prime is 10520245129. The reversal of 10520245128 is 82154202501.

It is a super-2 number, since 2×10520245128² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10520245095 and 10520245104.

It is not an unprimeable number, because it can be changed into a prime (10520245121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4551093 + ... + 4553403.

It is an arithmetic number, because the mean of its divisors is an integer number (221085000).

Almost surely, 2^10520245128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10520245128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14149440000).

10520245128 is an abundant number, since it is smaller than the sum of its proper divisors (17778634872).

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

10520245128 is a wasteful number, since it uses less digits than its factorization.

10520245128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555 (or 2551 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

Adding to 10520245128 its reverse (82154202501), we get a palindrome (92674447629).

The spelling of 10520245128 in words is "ten billion, five hundred twenty million, two hundred forty-five thousand, one hundred twenty-eight".