1002423563 has 2 divisors, whose sum is σ = 1002423564. Its totient is φ = 1002423562.

The previous prime is 1002423557. The next prime is 1002423571. The reversal of 1002423563 is 3653242001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002423563 is a prime.

It is a super-2 number, since 2×1002423563² = 2009705999315229938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1002423523) 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, 501211781 + 501211782.

It is an arithmetic number, because the mean of its divisors is an integer number (501211782).

Almost surely, 2^1002423563 is an apocalyptic number.

1002423563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002423563 is an equidigital number, since it uses as much as digits as its factorization.

1002423563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1002423563 is about 31661.0733077702. The cubic root of 1002423563 is about 1000.8072025820.

Adding to 1002423563 its reverse (3653242001), we get a palindrome (4655665564).

The spelling of 1002423563 in words is "one billion, two million, four hundred twenty-three thousand, five hundred sixty-three".