320101403 has 2 divisors, whose sum is σ = 320101404. Its totient is φ = 320101402.

The previous prime is 320101387. The next prime is 320101429. The reversal of 320101403 is 304101023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320101403 - 2⁴ = 320101387 is a prime.

It is not a weakly prime, because it can be changed into another prime (320101003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160050701 + 160050702.

It is an arithmetic number, because the mean of its divisors is an integer number (160050702).

Almost surely, 2^320101403 is an apocalyptic number.

320101403 is a deficient number, since it is larger than the sum of its proper divisors (1).

320101403 is an equidigital number, since it uses as much as digits as its factorization.

320101403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 320101403 is about 17891.3778955116. The cubic root of 320101403 is about 684.0626196618.

Adding to 320101403 its reverse (304101023), we get a palindrome (624202426).

The spelling of 320101403 in words is "three hundred twenty million, one hundred one thousand, four hundred three".