100321100121 has 24 divisors (see below), whose sum is σ = 147119301280. Its totient is φ = 60762525120.

The previous prime is 100321100101. The next prime is 100321100147. The reversal of 100321100121 is 121001123001.

It is not a de Polignac number, because 100321100121 - 2⁹ = 100321099609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100321100097 and 100321100106.

It is not an unprimeable number, because it can be changed into a prime (100321100101) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 498186 + ... + 669948.

Almost surely, 2^100321100121 is an apocalyptic number.

100321100121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100321100121 is a deficient number, since it is larger than the sum of its proper divisors (46798201159).

100321100121 is a wasteful number, since it uses less digits than its factorization.

100321100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173397 (or 173386 counting only the distinct ones).

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

Adding to 100321100121 its reverse (121001123001), we get a palindrome (221322223122).

The spelling of 100321100121 in words is "one hundred billion, three hundred twenty-one million, one hundred thousand, one hundred twenty-one".