630933318121 has 2 divisors, whose sum is σ = 630933318122. Its totient is φ = 630933318120.

The previous prime is 630933318053. The next prime is 630933318143. The reversal of 630933318121 is 121813339036.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 602890131600 + 28043186521 = 776460^2 + 167461^2 .

It is a cyclic number.

It is not a de Polignac number, because 630933318121 - 2¹¹ = 630933316073 is a prime.

It is not a weakly prime, because it can be changed into another prime (630933310121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315466659060 + 315466659061.

It is an arithmetic number, because the mean of its divisors is an integer number (315466659061).

Almost surely, 2^630933318121 is an apocalyptic number.

It is an amenable number.

630933318121 is a deficient number, since it is larger than the sum of its proper divisors (1).

630933318121 is an equidigital number, since it uses as much as digits as its factorization.

630933318121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 40.

The spelling of 630933318121 in words is "six hundred thirty billion, nine hundred thirty-three million, three hundred eighteen thousand, one hundred twenty-one".