3105113213 has 4 divisors (see below), whose sum is σ = 3106338720. Its totient is φ = 3103887708.

The previous prime is 3105113197. The next prime is 3105113243. The reversal of 3105113213 is 3123115013.

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 3105113213 - 2⁴ = 3105113197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3105113243) 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, 608945 + ... + 614022.

It is an arithmetic number, because the mean of its divisors is an integer number (776584680).

Almost surely, 2^3105113213 is an apocalyptic number.

It is an amenable number.

3105113213 is a deficient number, since it is larger than the sum of its proper divisors (1225507).

3105113213 is a wasteful number, since it uses less digits than its factorization.

3105113213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225506.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 3105113213 is about 55723.5427175983. The cubic root of 3105113213 is about 1458.9009701432.

Adding to 3105113213 its reverse (3123115013), we get a palindrome (6228228226).

The spelling of 3105113213 in words is "three billion, one hundred five million, one hundred thirteen thousand, two hundred thirteen".