30123234 has 12 divisors (see below), whose sum is σ = 65267046. Its totient is φ = 10041072.

The previous prime is 30123229. The next prime is 30123251. The reversal of 30123234 is 43232103.

It can be written as a sum of positive squares in only one way, i.e., 28676025 + 1447209 = 5355^2 + 1203^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1673513 = 30123234 / (3 + 0 + 1 + 2 + 3 + 2 + 3 + 4).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 836739 + ... + 836774.

Almost surely, 2^30123234 is an apocalyptic number.

30123234 is an abundant number, since it is smaller than the sum of its proper divisors (35143812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30123234 is a wasteful number, since it uses less digits than its factorization.

30123234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673521 (or 1673518 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 30123234 is about 5488.4637194756. The cubic root of 30123234 is about 311.1481323386.

Adding to 30123234 its reverse (43232103), we get a palindrome (73355337).

The spelling of 30123234 in words is "thirty million, one hundred twenty-three thousand, two hundred thirty-four".