30123213103 has 4 divisors (see below), whose sum is σ = 30123698328. Its totient is φ = 30122727880.

The previous prime is 30123213101. The next prime is 30123213119. The reversal of 30123213103 is 30131232103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30131232103 = 7 ⋅4304461729.

It is a cyclic number.

It is not a de Polignac number, because 30123213103 - 2¹ = 30123213101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123213101) 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, 132976 + ... + 279157.

It is an arithmetic number, because the mean of its divisors is an integer number (7530924582).

Almost surely, 2^30123213103 is an apocalyptic number.

30123213103 is a deficient number, since it is larger than the sum of its proper divisors (485225).

30123213103 is an equidigital number, since it uses as much as digits as its factorization.

30123213103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485224.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 30123213103 its reverse (30131232103), we get a palindrome (60254445206).

The spelling of 30123213103 in words is "thirty billion, one hundred twenty-three million, two hundred thirteen thousand, one hundred three".