6420263303 has 2 divisors, whose sum is σ = 6420263304. Its totient is φ = 6420263302.

The previous prime is 6420263287. The next prime is 6420263351. The reversal of 6420263303 is 3033620246.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6420263303 - 2⁴ = 6420263287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6420263363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3210131651 + 3210131652.

It is an arithmetic number, because the mean of its divisors is an integer number (3210131652).

Almost surely, 2^6420263303 is an apocalyptic number.

6420263303 is a deficient number, since it is larger than the sum of its proper divisors (1).

6420263303 is an equidigital number, since it uses as much as digits as its factorization.

6420263303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 29.

The square root of 6420263303 is about 80126.5455576365. The cubic root of 6420263303 is about 1858.5929257890.

Adding to 6420263303 its reverse (3033620246), we get a palindrome (9453883549).

The spelling of 6420263303 in words is "six billion, four hundred twenty million, two hundred sixty-three thousand, three hundred three".