3105320505 has 32 divisors (see below), whose sum is σ = 5925187584. Its totient is φ = 1357853376.

The previous prime is 3105320483. The next prime is 3105320513. The reversal of 3105320505 is 5050235013.

It is not a de Polignac number, because 3105320505 - 2⁶ = 3105320441 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 640509 + ... + 645338.

It is an arithmetic number, because the mean of its divisors is an integer number (185162112).

Almost surely, 2^3105320505 is an apocalyptic number.

3105320505 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3105320505 is a deficient number, since it is larger than the sum of its proper divisors (2819867079).

3105320505 is a wasteful number, since it uses less digits than its factorization.

3105320505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285885.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 3105320505 is about 55725.4026903350. The cubic root of 3105320505 is about 1458.9334339912.

Adding to 3105320505 its reverse (5050235013), we get a palindrome (8155555518).

It can be divided in two parts, 3105 and 320505, that added together give a triangular number (323610 = T₈₀₄).

The spelling of 3105320505 in words is "three billion, one hundred five million, three hundred twenty thousand, five hundred five".