30203123103 has 10 divisors (see below), whose sum is σ = 45118245744. Its totient is φ = 20135415348.

The previous prime is 30203123089. The next prime is 30203123129. The reversal of 30203123103 is 30132130203.

It is not a de Polignac number, because 30203123103 - 2¹⁷ = 30202992031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30203123143) 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 9 ways as a sum of consecutive naturals, for example, 186438951 + ... + 186439112.

Almost surely, 2^30203123103 is an apocalyptic number.

30203123103 is a deficient number, since it is larger than the sum of its proper divisors (14915122641).

30203123103 is an equidigital number, since it uses as much as digits as its factorization.

30203123103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372878075 (or 372878066 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 30203123103 its reverse (30132130203), we get a palindrome (60335253306).

The spelling of 30203123103 in words is "thirty billion, two hundred three million, one hundred twenty-three thousand, one hundred three".