320342101 has 4 divisors (see below), whose sum is σ = 339185772. Its totient is φ = 301498432.

The previous prime is 320342063. The next prime is 320342111. The reversal of 320342101 is 101243023.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101243023 = 7 ⋅14463289.

It can be written as a sum of positive squares in 2 ways, for example, as 212722225 + 107619876 = 14585^2 + 10374^2 .

It is a cyclic number.

It is not a de Polignac number, because 320342101 - 2⁹ = 320341589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320342111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9421810 + ... + 9421843.

It is an arithmetic number, because the mean of its divisors is an integer number (84796443).

Almost surely, 2^320342101 is an apocalyptic number.

It is an amenable number.

320342101 is a deficient number, since it is larger than the sum of its proper divisors (18843671).

320342101 is a wasteful number, since it uses less digits than its factorization.

320342101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18843670.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 320342101 is about 17898.1032793981. The cubic root of 320342101 is about 684.2340353968.

Adding to 320342101 its reverse (101243023), we get a palindrome (421585124).

The spelling of 320342101 in words is "three hundred twenty million, three hundred forty-two thousand, one hundred one".