30203112103 has 4 divisors (see below), whose sum is σ = 30203495728. Its totient is φ = 30202728480.

The previous prime is 30203112077. The next prime is 30203112127. The reversal of 30203112103 is 30121130203.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 30121130203 = 431 ⋅69886613.

It is a cyclic number.

It is not a de Polignac number, because 30203112103 - 2²⁹ = 29666241191 is a prime.

It is a super-3 number, since 3×30203112103³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30203112133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25851 + ... + 247132.

It is an arithmetic number, because the mean of its divisors is an integer number (7550873932).

Almost surely, 2^30203112103 is an apocalyptic number.

30203112103 is a deficient number, since it is larger than the sum of its proper divisors (383625).

30203112103 is a wasteful number, since it uses less digits than its factorization.

30203112103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383624.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30203112103 its reverse (30121130203), we get a palindrome (60324242306).

The spelling of 30203112103 in words is "thirty billion, two hundred three million, one hundred twelve thousand, one hundred three".