320100121 has 4 divisors (see below), whose sum is σ = 349200144. Its totient is φ = 291000100.

The previous prime is 320100119. The next prime is 320100139. The reversal of 320100121 is 121001023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 320100121 - 2¹ = 320100119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320100098 and 320100107.

It is not an unprimeable number, because it can be changed into a prime (320100101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14549995 + ... + 14550016.

It is an arithmetic number, because the mean of its divisors is an integer number (87300036).

Almost surely, 2^320100121 is an apocalyptic number.

It is an amenable number.

320100121 is a deficient number, since it is larger than the sum of its proper divisors (29100023).

320100121 is a wasteful number, since it uses less digits than its factorization.

320100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29100022.

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

The square root of 320100121 is about 17891.3420681625. The cubic root of 320100121 is about 684.0617064413.

Adding to 320100121 its reverse (121001023), we get a palindrome (441101144).

The spelling of 320100121 in words is "three hundred twenty million, one hundred thousand, one hundred twenty-one".