320636101 has 2 divisors, whose sum is σ = 320636102. Its totient is φ = 320636100.

The previous prime is 320636081. The next prime is 320636137. The reversal of 320636101 is 101636023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252969025 + 67667076 = 15905^2 + 8226^2 .

It is an emirp because it is prime and its reverse (101636023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320636101 - 2²¹ = 318538949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320636401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160318050 + 160318051.

It is an arithmetic number, because the mean of its divisors is an integer number (160318051).

Almost surely, 2^320636101 is an apocalyptic number.

It is an amenable number.

320636101 is a deficient number, since it is larger than the sum of its proper divisors (1).

320636101 is an equidigital number, since it uses as much as digits as its factorization.

320636101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 320636101 is about 17906.3145566027. The cubic root of 320636101 is about 684.4432942862.

The spelling of 320636101 in words is "three hundred twenty million, six hundred thirty-six thousand, one hundred one".