30152123 has 2 divisors, whose sum is σ = 30152124. Its totient is φ = 30152122.

The previous prime is 30152093. The next prime is 30152131. The reversal of 30152123 is 32125103.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30152123 - 2⁸ = 30151867 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (30151123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15076061 + 15076062.

It is an arithmetic number, because the mean of its divisors is an integer number (15076062).

Almost surely, 2^30152123 is an apocalyptic number.

30152123 is a deficient number, since it is larger than the sum of its proper divisors (1).

30152123 is an equidigital number, since it uses as much as digits as its factorization.

30152123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 30152123 is about 5491.0948817153. The cubic root of 30152123 is about 311.2475670632.

Adding to 30152123 its reverse (32125103), we get a palindrome (62277226).

The spelling of 30152123 in words is "thirty million, one hundred fifty-two thousand, one hundred twenty-three".