100323203121 has 24 divisors (see below), whose sum is σ = 148369066560. Its totient is φ = 65288081376.

The previous prime is 100323203111. The next prime is 100323203161. The reversal of 100323203121 is 121302323001.

100323203121 is a `hidden beast` number, since 1 + 0 + 0 + 32 + 320 + 312 + 1 = 666.

It is not a de Polignac number, because 100323203121 - 2¹³ = 100323194929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100323203094 and 100323203103.

It is not an unprimeable number, because it can be changed into a prime (100323203111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 585540 + ... + 737226.

It is an arithmetic number, because the mean of its divisors is an integer number (6182044440).

Almost surely, 2^100323203121 is an apocalyptic number.

It is an amenable number.

100323203121 is a deficient number, since it is larger than the sum of its proper divisors (48045863439).

100323203121 is a wasteful number, since it uses less digits than its factorization.

100323203121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153445 (or 153442 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 100323203121 its reverse (121302323001), we get a palindrome (221625526122).

The spelling of 100323203121 in words is "one hundred billion, three hundred twenty-three million, two hundred three thousand, one hundred twenty-one".