30321112103 has 4 divisors (see below), whose sum is σ = 30323813088. Its totient is φ = 30318411120.

The previous prime is 30321112097. The next prime is 30321112147. The reversal of 30321112103 is 30121112303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30121112303 = 1447 ⋅20816249.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30321112103 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 (30321112163) 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, 1333583 + ... + 1356128.

It is an arithmetic number, because the mean of its divisors is an integer number (7580953272).

Almost surely, 2^30321112103 is an apocalyptic number.

30321112103 is a deficient number, since it is larger than the sum of its proper divisors (2700985).

30321112103 is a wasteful number, since it uses less digits than its factorization.

30321112103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700984.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 30321112103 its reverse (30121112303), we get a palindrome (60442224406).

The spelling of 30321112103 in words is "thirty billion, three hundred twenty-one million, one hundred twelve thousand, one hundred three".