100520550012 has 96 divisors (see below), whose sum is σ = 243700128000. Its totient is φ = 32224504320.

The previous prime is 100520550007. The next prime is 100520550019. The reversal of 100520550012 is 210055025001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100520550019) 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, 20374698 + ... + 20379630.

It is an arithmetic number, because the mean of its divisors is an integer number (2538543000).

Almost surely, 2^100520550012 is an apocalyptic number.

100520550012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100520550012 is an abundant number, since it is smaller than the sum of its proper divisors (143179577988).

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

100520550012 is a wasteful number, since it uses less digits than its factorization.

100520550012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5563 (or 5561 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

Adding to 100520550012 its reverse (210055025001), we get a palindrome (310575575013).

The spelling of 100520550012 in words is "one hundred billion, five hundred twenty million, five hundred fifty thousand, twelve".