30123113305 has 8 divisors (see below), whose sum is σ = 37394209800. Its totient is φ = 23267508096.

The previous prime is 30123113299. The next prime is 30123113327. The reversal of 30123113305 is 50331132103.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4182467584 + 25940645721 = 64672^2 + 161061^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30123113305 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 103872660 + ... + 103872949.

It is an arithmetic number, because the mean of its divisors is an integer number (4674276225).

Almost surely, 2^30123113305 is an apocalyptic number.

It is an amenable number.

30123113305 is a deficient number, since it is larger than the sum of its proper divisors (7271096495).

30123113305 is a wasteful number, since it uses less digits than its factorization.

30123113305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207745643.

The product of its (nonzero) digits is 810, while the sum is 22.

Adding to 30123113305 its reverse (50331132103), we get a palindrome (80454245408).

The spelling of 30123113305 in words is "thirty billion, one hundred twenty-three million, one hundred thirteen thousand, three hundred five".