30123053 has 2 divisors, whose sum is σ = 30123054. Its totient is φ = 30123052.

The previous prime is 30123047. The next prime is 30123061. The reversal of 30123053 is 35032103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28590409 + 1532644 = 5347^2 + 1238^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30123053 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30126053) 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, 15061526 + 15061527.

It is an arithmetic number, because the mean of its divisors is an integer number (15061527).

Almost surely, 2^30123053 is an apocalyptic number.

It is an amenable number.

30123053 is a deficient number, since it is larger than the sum of its proper divisors (1).

30123053 is an equidigital number, since it uses as much as digits as its factorization.

30123053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 30123053 is about 5488.4472303193. The cubic root of 30123053 is about 311.1475091438.

Adding to 30123053 its reverse (35032103), we get a palindrome (65155156).

The spelling of 30123053 in words is "thirty million, one hundred twenty-three thousand, fifty-three".