30243123 has 6 divisors (see below), whose sum is σ = 43684524. Its totient is φ = 20162076.

The previous prime is 30243121. The next prime is 30243127. The reversal of 30243123 is 32134203.

It is not a de Polignac number, because 30243123 - 2¹ = 30243121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30243096 and 30243105.

It is not an unprimeable number, because it can be changed into a prime (30243121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1680165 + ... + 1680182.

It is an arithmetic number, because the mean of its divisors is an integer number (7280754).

Almost surely, 2^30243123 is an apocalyptic number.

30243123 is a deficient number, since it is larger than the sum of its proper divisors (13441401).

30243123 is a wasteful number, since it uses less digits than its factorization.

30243123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3360353 (or 3360350 counting only the distinct ones).

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

The square root of 30243123 is about 5499.3747826458. The cubic root of 30243123 is about 311.5603707148.

Adding to 30243123 its reverse (32134203), we get a palindrome (62377326).

The spelling of 30243123 in words is "thirty million, two hundred forty-three thousand, one hundred twenty-three".