30123133 has 16 divisors (see below), whose sum is σ = 33048000. Its totient is φ = 27346176.

The previous prime is 30123109. The next prime is 30123139. The reversal of 30123133 is 33132103.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30123133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60118 + ... + 60616.

It is an arithmetic number, because the mean of its divisors is an integer number (2065500).

Almost surely, 2^30123133 is an apocalyptic number.

It is an amenable number.

30123133 is a deficient number, since it is larger than the sum of its proper divisors (2924867).

30123133 is a wasteful number, since it uses less digits than its factorization.

30123133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 30123133 is about 5488.4545183503. The cubic root of 30123133 is about 311.1477845893.

Adding to 30123133 its reverse (33132103), we get a palindrome (63255236).

The spelling of 30123133 in words is "thirty million, one hundred twenty-three thousand, one hundred thirty-three".