401530303 has 2 divisors, whose sum is σ = 401530304. Its totient is φ = 401530302.

The previous prime is 401530301. The next prime is 401530307. The reversal of 401530303 is 303035104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401530303 - 2¹ = 401530301 is a prime.

It is a super-2 number, since 2×401530303² = 322453168454543618, which contains 22 as substring.

Together with 401530301, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401530301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200765151 + 200765152.

It is an arithmetic number, because the mean of its divisors is an integer number (200765152).

Almost surely, 2^401530303 is an apocalyptic number.

401530303 is a deficient number, since it is larger than the sum of its proper divisors (1).

401530303 is an equidigital number, since it uses as much as digits as its factorization.

401530303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 401530303 is about 20038.2210537762. The cubic root of 401530303 is about 737.7447180989.

Adding to 401530303 its reverse (303035104), we get a palindrome (704565407).

The spelling of 401530303 in words is "four hundred one million, five hundred thirty thousand, three hundred three".