100213231020 has 144 divisors (see below), whose sum is σ = 343588412160. Its totient is φ = 21700296576.

The previous prime is 100213231009. The next prime is 100213231043. The reversal of 100213231020 is 20132312001.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 47 ways as a sum of consecutive naturals, for example, 841144 + ... + 952863.

It is an arithmetic number, because the mean of its divisors is an integer number (2386030640).

Almost surely, 2^100213231020 is an apocalyptic number.

100213231020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100213231020 is an abundant number, since it is smaller than the sum of its proper divisors (243375181140).

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

100213231020 is a wasteful number, since it uses less digits than its factorization.

100213231020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794052 (or 1794043 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 100213231020 its reverse (20132312001), we get a palindrome (120345543021).

The spelling of 100213231020 in words is "one hundred billion, two hundred thirteen million, two hundred thirty-one thousand, twenty".