31230030001 has 2 divisors, whose sum is σ = 31230030002. Its totient is φ = 31230030000.

The previous prime is 31230029989. The next prime is 31230030053. The reversal of 31230030001 is 10003003213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22962856225 + 8267173776 = 151535^2 + 90924^2 .

It is a cyclic number.

It is not a de Polignac number, because 31230030001 - 2⁹ = 31230029489 is a prime.

It is not a weakly prime, because it can be changed into another prime (31230030061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15615015000 + 15615015001.

It is an arithmetic number, because the mean of its divisors is an integer number (15615015001).

Almost surely, 2^31230030001 is an apocalyptic number.

It is an amenable number.

31230030001 is a deficient number, since it is larger than the sum of its proper divisors (1).

31230030001 is an equidigital number, since it uses as much as digits as its factorization.

31230030001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 31230030001 its reverse (10003003213), we get a palindrome (41233033214).

It can be divided in two parts, 31 and 230030001, that added together give a palindrome (230030032).

The spelling of 31230030001 in words is "thirty-one billion, two hundred thirty million, thirty thousand, one".