320321101 has 2 divisors, whose sum is σ = 320321102. Its totient is φ = 320321100.

The previous prime is 320321087. The next prime is 320321107. The reversal of 320321101 is 101123023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164096100 + 156225001 = 12810^2 + 12499^2 .

It is a cyclic number.

It is not a de Polignac number, because 320321101 - 2¹⁵ = 320288333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320321107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160160550 + 160160551.

It is an arithmetic number, because the mean of its divisors is an integer number (160160551).

Almost surely, 2^320321101 is an apocalyptic number.

It is an amenable number.

320321101 is a deficient number, since it is larger than the sum of its proper divisors (1).

320321101 is an equidigital number, since it uses as much as digits as its factorization.

320321101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 320321101 is about 17897.5166154414. The cubic root of 320321101 is about 684.2190834349.

Adding to 320321101 its reverse (101123023), we get a palindrome (421444124).

It can be divided in two parts, 32032 and 1101, that added together give a palindrome (33133).

The spelling of 320321101 in words is "three hundred twenty million, three hundred twenty-one thousand, one hundred one".