30012103 has 4 divisors (see below), whose sum is σ = 32740488. Its totient is φ = 27283720.

The previous prime is 30012029. The next prime is 30012107. The reversal of 30012103 is 30121003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30121003 = 11 ⋅2738273.

It is a cyclic number.

It is not a de Polignac number, because 30012103 - 2⁹ = 30011591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30012103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30012107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1364176 + ... + 1364197.

It is an arithmetic number, because the mean of its divisors is an integer number (8185122).

Almost surely, 2^30012103 is an apocalyptic number.

30012103 is a deficient number, since it is larger than the sum of its proper divisors (2728385).

30012103 is a wasteful number, since it uses less digits than its factorization.

30012103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2728384.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 30012103 is about 5478.3303113266. The cubic root of 30012103 is about 310.7650303497.

Adding to 30012103 its reverse (30121003), we get a palindrome (60133106).

Subtracting 30012103 from its reverse (30121003), we obtain a square (108900 = 330²).

It can be divided in two parts, 300 and 12103, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 30012103 in words is "thirty million, twelve thousand, one hundred three".