30133023157 has 2 divisors, whose sum is σ = 30133023158. Its totient is φ = 30133023156.

The previous prime is 30133023139. The next prime is 30133023203. The reversal of 30133023157 is 75132033103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16353550161 + 13779472996 = 127881^2 + 117386^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30133023157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30133023257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15066511578 + 15066511579.

It is an arithmetic number, because the mean of its divisors is an integer number (15066511579).

Almost surely, 2^30133023157 is an apocalyptic number.

It is an amenable number.

30133023157 is a deficient number, since it is larger than the sum of its proper divisors (1).

30133023157 is an equidigital number, since it uses as much as digits as its factorization.

30133023157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670, while the sum is 28.

The spelling of 30133023157 in words is "thirty billion, one hundred thirty-three million, twenty-three thousand, one hundred fifty-seven".