30133023257 has 2 divisors, whose sum is σ = 30133023258. Its totient is φ = 30133023256.

The previous prime is 30133023241. The next prime is 30133023313. The reversal of 30133023257 is 75232033103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30102597001 + 30426256 = 173501^2 + 5516^2 .

It is a cyclic number.

It is not a de Polignac number, because 30133023257 - 2⁴ = 30133023241 is a prime.

It is not a weakly prime, because it can be changed into another prime (30133023157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15066511628 + 15066511629.

It is an arithmetic number, because the mean of its divisors is an integer number (15066511629).

Almost surely, 2^30133023257 is an apocalyptic number.

It is an amenable number.

30133023257 is a deficient number, since it is larger than the sum of its proper divisors (1).

30133023257 is an equidigital number, since it uses as much as digits as its factorization.

30133023257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 29.

The spelling of 30133023257 in words is "thirty billion, one hundred thirty-three million, twenty-three thousand, two hundred fifty-seven".