100121032 has 64 divisors (see below), whose sum is σ = 217339200. Its totient is φ = 42762240.

The previous prime is 100121029. The next prime is 100121039. The reversal of 100121032 is 230121001.

It is not an unprimeable number, because it can be changed into a prime (100121039) by changing a digit.

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, 389448 + ... + 389704.

It is an arithmetic number, because the mean of its divisors is an integer number (3395925).

Almost surely, 2^100121032 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 100121032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108669600).

100121032 is an abundant number, since it is smaller than the sum of its proper divisors (117218168).

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

100121032 is a wasteful number, since it uses less digits than its factorization.

100121032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526 (or 522 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 100121032 is about 10006.0497700141. The cubic root of 100121032 is about 464.3460681237.

Adding to 100121032 its reverse (230121001), we get a palindrome (330242033).

The spelling of 100121032 in words is "one hundred million, one hundred twenty-one thousand, thirty-two".