630103031 has 2 divisors, whose sum is σ = 630103032. Its totient is φ = 630103030.

The previous prime is 630103021. The next prime is 630103043. The reversal of 630103031 is 130301036.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 630103031 - 2¹⁰ = 630102007 is a prime.

It is a super-2 number, since 2×630103031² = 794059659350773922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630103021) 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, 315051515 + 315051516.

It is an arithmetic number, because the mean of its divisors is an integer number (315051516).

Almost surely, 2^630103031 is an apocalyptic number.

630103031 is a deficient number, since it is larger than the sum of its proper divisors (1).

630103031 is an equidigital number, since it uses as much as digits as its factorization.

630103031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 630103031 is about 25101.8531387625. The cubic root of 630103031 is about 857.3086182499.

Adding to 630103031 its reverse (130301036), we get a palindrome (760404067).

The spelling of 630103031 in words is "six hundred thirty million, one hundred three thousand, thirty-one".