30031311953 has 2 divisors, whose sum is σ = 30031311954. Its totient is φ = 30031311952.

The previous prime is 30031311917. The next prime is 30031312001. The reversal of 30031311953 is 35911313003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27169917889 + 2861394064 = 164833^2 + 53492^2 .

It is a cyclic number.

It is not a de Polignac number, because 30031311953 - 2⁶ = 30031311889 is a prime.

It is not a weakly prime, because it can be changed into another prime (30031314953) 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, 15015655976 + 15015655977.

It is an arithmetic number, because the mean of its divisors is an integer number (15015655977).

Almost surely, 2^30031311953 is an apocalyptic number.

It is an amenable number.

30031311953 is a deficient number, since it is larger than the sum of its proper divisors (1).

30031311953 is an equidigital number, since it uses as much as digits as its factorization.

30031311953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3645, while the sum is 29.

Adding to 30031311953 its reverse (35911313003), we get a palindrome (65942624956).

The spelling of 30031311953 in words is "thirty billion, thirty-one million, three hundred eleven thousand, nine hundred fifty-three".