30124923 has 4 divisors (see below), whose sum is σ = 40166568. Its totient is φ = 20083280.

The previous prime is 30124921. The next prime is 30124949. The reversal of 30124923 is 32942103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32942103 = 3 ⋅10980701.

It is a cyclic number.

It is not a de Polignac number, because 30124923 - 2¹ = 30124921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30124893 and 30124902.

It is not an unprimeable number, because it can be changed into a prime (30124921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5020818 + ... + 5020823.

It is an arithmetic number, because the mean of its divisors is an integer number (10041642).

Almost surely, 2^30124923 is an apocalyptic number.

30124923 is a deficient number, since it is larger than the sum of its proper divisors (10041645).

30124923 is a wasteful number, since it uses less digits than its factorization.

30124923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10041644.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 30124923 is about 5488.6175855128. The cubic root of 30124923 is about 311.1539475550.

The spelling of 30124923 in words is "thirty million, one hundred twenty-four thousand, nine hundred twenty-three".