305105603013 has 16 divisors (see below), whose sum is σ = 459669460800. Its totient is φ = 199956213360.

The previous prime is 305105603003. The next prime is 305105603051. The reversal of 305105603013 is 310306501503.

305105603013 is a `hidden beast` number, since 3 + 0 + 51 + 0 + 5 + 603 + 0 + 1 + 3 = 666.

It is not a de Polignac number, because 305105603013 - 2¹⁰ = 305105601989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305105603003) 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 15 ways as a sum of consecutive naturals, for example, 95762878 + ... + 95766063.

It is an arithmetic number, because the mean of its divisors is an integer number (28729341300).

Almost surely, 2^305105603013 is an apocalyptic number.

It is an amenable number.

305105603013 is a deficient number, since it is larger than the sum of its proper divisors (154563857787).

305105603013 is a wasteful number, since it uses less digits than its factorization.

305105603013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191529009 (or 191529003 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

The spelling of 305105603013 in words is "three hundred five billion, one hundred five million, six hundred three thousand, thirteen".