320550101 has 2 divisors, whose sum is σ = 320550102. Its totient is φ = 320550100.

The previous prime is 320550091. The next prime is 320550119. The reversal of 320550101 is 101055023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223054225 + 97495876 = 14935^2 + 9874^2 .

It is a cyclic number.

It is not a de Polignac number, because 320550101 - 2⁶ = 320550037 is a prime.

It is a super-2 number, since 2×320550101² = 205504734502220402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320550101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320550001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160275050 + 160275051.

It is an arithmetic number, because the mean of its divisors is an integer number (160275051).

Almost surely, 2^320550101 is an apocalyptic number.

It is an amenable number.

320550101 is a deficient number, since it is larger than the sum of its proper divisors (1).

320550101 is an equidigital number, since it uses as much as digits as its factorization.

320550101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 320550101 is about 17903.9130080550. The cubic root of 320550101 is about 684.3820957432.

The spelling of 320550101 in words is "three hundred twenty million, five hundred fifty thousand, one hundred one".