63303013 has 2 divisors, whose sum is σ = 63303014. Its totient is φ = 63303012.

The previous prime is 63303011. The next prime is 63303017. The reversal of 63303013 is 31030336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32467204 + 30835809 = 5698^2 + 5553^2 .

It is a cyclic number.

It is not a de Polignac number, because 63303013 - 2¹ = 63303011 is a prime.

Together with 63303011, 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 (63303011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31651506 + 31651507.

It is an arithmetic number, because the mean of its divisors is an integer number (31651507).

Almost surely, 2^63303013 is an apocalyptic number.

It is an amenable number.

63303013 is a deficient number, since it is larger than the sum of its proper divisors (1).

63303013 is an equidigital number, since it uses as much as digits as its factorization.

63303013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 63303013 is about 7956.3190609729. The cubic root of 63303013 is about 398.5426404564.

Adding to 63303013 its reverse (31030336), we get a palindrome (94333349).

The spelling of 63303013 in words is "sixty-three million, three hundred three thousand, thirteen".