30123100205 has 8 divisors (see below), whose sum is σ = 39433876704. Its totient is φ = 21907709200.

The previous prime is 30123100181. The next prime is 30123100229. The reversal of 30123100205 is 50200132103.

It is an interprime number because it is at equal distance from previous prime (30123100181) and next prime (30123100229).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30123100205 - 2⁸ = 30123099949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273846311 + ... + 273846420.

It is an arithmetic number, because the mean of its divisors is an integer number (4929234588).

Almost surely, 2^30123100205 is an apocalyptic number.

It is an amenable number.

30123100205 is a deficient number, since it is larger than the sum of its proper divisors (9310776499).

30123100205 is a wasteful number, since it uses less digits than its factorization.

30123100205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547692747.

The product of its (nonzero) digits is 180, while the sum is 17.

Adding to 30123100205 its reverse (50200132103), we get a palindrome (80323232308).

The spelling of 30123100205 in words is "thirty billion, one hundred twenty-three million, one hundred thousand, two hundred five".