3105688113 has 24 divisors (see below), whose sum is σ = 4898589696. Its totient is φ = 1880397600.

The previous prime is 3105688109. The next prime is 3105688123. The reversal of 3105688113 is 3118865013.

3105688113 is a `hidden beast` number, since 3 + 1 + 0 + 568 + 81 + 13 = 666.

It is not a de Polignac number, because 3105688113 - 2² = 3105688109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3105688123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90256 + ... + 119822.

It is an arithmetic number, because the mean of its divisors is an integer number (204107904).

Almost surely, 2^3105688113 is an apocalyptic number.

3105688113 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3105688113 is a deficient number, since it is larger than the sum of its proper divisors (1792901583).

3105688113 is a wasteful number, since it uses less digits than its factorization.

3105688113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30645 (or 30642 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 3105688113 is about 55728.7009807334. The cubic root of 3105688113 is about 1458.9910012578.

Subtracting 3105688113 from its reverse (3118865013), we obtain a square (13176900 = 3630²).

The spelling of 3105688113 in words is "three billion, one hundred five million, six hundred eighty-eight thousand, one hundred thirteen".