30123693 has 12 divisors (see below), whose sum is σ = 44524480. Its totient is φ = 19615176.

The previous prime is 30123679. The next prime is 30123701. The reversal of 30123693 is 39632103.

It is not a de Polignac number, because 30123693 - 2⁸ = 30123437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123593) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38533 + ... + 39306.

Almost surely, 2^30123693 is an apocalyptic number.

It is an amenable number.

30123693 is a deficient number, since it is larger than the sum of its proper divisors (14400787).

30123693 is a wasteful number, since it uses less digits than its factorization.

30123693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77888 (or 77885 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 30123693 is about 5488.5055342962. The cubic root of 30123693 is about 311.1497126942.

Adding to 30123693 its reverse (39632103), we get a palindrome (69755796).

The spelling of 30123693 in words is "thirty million, one hundred twenty-three thousand, six hundred ninety-three".