402303403 has 2 divisors, whose sum is σ = 402303404. Its totient is φ = 402303402.

The previous prime is 402303401. The next prime is 402303449. The reversal of 402303403 is 304303204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402303403 - 2¹ = 402303401 is a prime.

Together with 402303401, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (402303401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201151701 + 201151702.

It is an arithmetic number, because the mean of its divisors is an integer number (201151702).

Almost surely, 2^402303403 is an apocalyptic number.

402303403 is a deficient number, since it is larger than the sum of its proper divisors (1).

402303403 is an equidigital number, since it uses as much as digits as its factorization.

402303403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 402303403 is about 20057.5024118159. The cubic root of 402303403 is about 738.2178951589.

Adding to 402303403 its reverse (304303204), we get a palindrome (706606607).

The spelling of 402303403 in words is "four hundred two million, three hundred three thousand, four hundred three".