100231210020 has 48 divisors (see below), whose sum is σ = 284028696000. Its totient is φ = 26406293376.

The previous prime is 100231209983. The next prime is 100231210063. The reversal of 100231210020 is 20012132001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 100231209978 and 100231210005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10058395 + ... + 10068354.

It is an arithmetic number, because the mean of its divisors is an integer number (5917264500).

Almost surely, 2^100231210020 is an apocalyptic number.

100231210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100231210020 is an abundant number, since it is smaller than the sum of its proper divisors (183797485980).

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

100231210020 is a wasteful number, since it uses less digits than its factorization.

100231210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20126844 (or 20126842 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 100231210020 its reverse (20012132001), we get a palindrome (120243342021).

The spelling of 100231210020 in words is "one hundred billion, two hundred thirty-one million, two hundred ten thousand, twenty".