30123010109 has 4 divisors (see below), whose sum is σ = 30307814016. Its totient is φ = 29938206204.

The previous prime is 30123010079. The next prime is 30123010121. The reversal of 30123010109 is 90101032103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30123010109 - 2¹² = 30123006013 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123010129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92401709 + ... + 92402034.

It is an arithmetic number, because the mean of its divisors is an integer number (7576953504).

Almost surely, 2^30123010109 is an apocalyptic number.

It is an amenable number.

30123010109 is a deficient number, since it is larger than the sum of its proper divisors (184803907).

30123010109 is a wasteful number, since it uses less digits than its factorization.

30123010109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184803906.

The product of its (nonzero) digits is 162, while the sum is 20.

The spelling of 30123010109 in words is "thirty billion, one hundred twenty-three million, ten thousand, one hundred nine".