3105723840613 has 4 divisors (see below), whose sum is σ = 3240755311968. Its totient is φ = 2970692369260.

The previous prime is 3105723840599. The next prime is 3105723840719. The reversal of 3105723840613 is 3160483275013.

3105723840613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3105723840613 - 2²⁹ = 3105186969701 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3105723840613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3105723840013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67515735643 + ... + 67515735688.

It is an arithmetic number, because the mean of its divisors is an integer number (810188827992).

Almost surely, 2^{3105723840613} is an apocalyptic number.

It is an amenable number.

3105723840613 is a deficient number, since it is larger than the sum of its proper divisors (135031471355).

3105723840613 is a wasteful number, since it uses less digits than its factorization.

3105723840613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135031471354.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 3105723840613 in words is "three trillion, one hundred five billion, seven hundred twenty-three million, eight hundred forty thousand, six hundred thirteen".