30121132103 has 4 divisors (see below), whose sum is σ = 30124419960. Its totient is φ = 30117844248.

The previous prime is 30121132081. The next prime is 30121132133. The reversal of 30121132103 is 30123112103.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30121132103 - 2⁶ = 30121132039 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 (30121132133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1630148 + ... + 1648521.

It is an arithmetic number, because the mean of its divisors is an integer number (7531104990).

Almost surely, 2^30121132103 is an apocalyptic number.

30121132103 is a deficient number, since it is larger than the sum of its proper divisors (3287857).

30121132103 is an equidigital number, since it uses as much as digits as its factorization.

30121132103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3287856.

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

Adding to 30121132103 its reverse (30123112103), we get a palindrome (60244244206).

The spelling of 30121132103 in words is "thirty billion, one hundred twenty-one million, one hundred thirty-two thousand, one hundred three".