3113213111 has 4 divisors (see below), whose sum is σ = 3296343312. Its totient is φ = 2930082912.

The previous prime is 3113213101. The next prime is 3113213143. The reversal of 3113213111 is 1113123113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3113213111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 183130183 = 3113213111 / (3 + 1 + 1 + 3 + 2 + 1 + 3 + 1 + 1 + 1).

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 3113213111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3113213101) 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, 91565075 + ... + 91565108.

It is an arithmetic number, because the mean of its divisors is an integer number (824085828).

Almost surely, 2^3113213111 is an apocalyptic number.

3113213111 is a deficient number, since it is larger than the sum of its proper divisors (183130201).

3113213111 is a wasteful number, since it uses less digits than its factorization.

3113213111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183130200.

The product of its digits is 54, while the sum is 17.

The square root of 3113213111 is about 55796.1746986297. The cubic root of 3113213111 is about 1460.1684160194.

Adding to 3113213111 its reverse (1113123113), we get a palindrome (4226336224).

It can be divided in two parts, 311321 and 3111, that added together give a cube (314432 = 68³).

The spelling of 3113213111 in words is "three billion, one hundred thirteen million, two hundred thirteen thousand, one hundred eleven".