320424101 has 4 divisors (see below), whose sum is σ = 321332172. Its totient is φ = 319516032.

The previous prime is 320424031. The next prime is 320424127. The reversal of 320424101 is 101424023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 108139201 + 212284900 = 10399^2 + 14570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320424101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320424101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320424191) 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, 453506 + ... + 454211.

It is an arithmetic number, because the mean of its divisors is an integer number (80333043).

Almost surely, 2^320424101 is an apocalyptic number.

It is an amenable number.

320424101 is a deficient number, since it is larger than the sum of its proper divisors (908071).

320424101 is an equidigital number, since it uses as much as digits as its factorization.

320424101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908070.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 320424101 is about 17900.3938783480. The cubic root of 320424101 is about 684.2924129917.

Adding to 320424101 its reverse (101424023), we get a palindrome (421848124).

The spelling of 320424101 in words is "three hundred twenty million, four hundred twenty-four thousand, one hundred one".