630801023 has 2 divisors, whose sum is σ = 630801024. Its totient is φ = 630801022.

The previous prime is 630801001. The next prime is 630801137. The reversal of 630801023 is 320108036.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 630801023 - 2¹⁰ = 630799999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 630801023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630801923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315400511 + 315400512.

It is an arithmetic number, because the mean of its divisors is an integer number (315400512).

Almost surely, 2^630801023 is an apocalyptic number.

630801023 is a deficient number, since it is larger than the sum of its proper divisors (1).

630801023 is an equidigital number, since it uses as much as digits as its factorization.

630801023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 630801023 is about 25115.7524872340. The cubic root of 630801023 is about 857.6250605394.

Adding to 630801023 its reverse (320108036), we get a palindrome (950909059).

The spelling of 630801023 in words is "six hundred thirty million, eight hundred one thousand, twenty-three".