320279803 has 2 divisors, whose sum is σ = 320279804. Its totient is φ = 320279802.

The previous prime is 320279801. The next prime is 320279851. The reversal of 320279803 is 308972023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320279803 - 2¹ = 320279801 is a prime.

Together with 320279801, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (320279801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160139901 + 160139902.

It is an arithmetic number, because the mean of its divisors is an integer number (160139902).

Almost surely, 2^320279803 is an apocalyptic number.

320279803 is a deficient number, since it is larger than the sum of its proper divisors (1).

320279803 is an equidigital number, since it uses as much as digits as its factorization.

320279803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 320279803 is about 17896.3628427678. The cubic root of 320279803 is about 684.1896774273.

The spelling of 320279803 in words is "three hundred twenty million, two hundred seventy-nine thousand, eight hundred three".