630311023 has 6 divisors (see below), whose sum is σ = 669569456. Its totient is φ = 593233632.

The previous prime is 630310991. The next prime is 630311051. The reversal of 630311023 is 320113036.

630311023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 630311023 - 2⁵ = 630310991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630311063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1090215 + ... + 1090792.

Almost surely, 2^630311023 is an apocalyptic number.

630311023 is a deficient number, since it is larger than the sum of its proper divisors (39258433).

630311023 is a wasteful number, since it uses less digits than its factorization.

630311023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181041 (or 2181024 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 630311023 is about 25105.9957579858. The cubic root of 630311023 is about 857.4029381252.

Adding to 630311023 its reverse (320113036), we get a palindrome (950424059).

The spelling of 630311023 in words is "six hundred thirty million, three hundred eleven thousand, twenty-three".