3113121113 has 4 divisors (see below), whose sum is σ = 3118200228. Its totient is φ = 3108042000.

The previous prime is 3113121097. The next prime is 3113121119. The reversal of 3113121113 is 3111213113.

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

It can be written as a sum of positive squares in 2 ways, for example, as 51380224 + 3061740889 = 7168^2 + 55333^2 .

It is a cyclic number.

It is not a de Polignac number, because 3113121113 - 2⁴ = 3113121097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3113121091 and 3113121100.

It is not an unprimeable number, because it can be changed into a prime (3113121119) 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, 2538638 + ... + 2539863.

It is an arithmetic number, because the mean of its divisors is an integer number (779550057).

Almost surely, 2^3113121113 is an apocalyptic number.

It is an amenable number.

3113121113 is a deficient number, since it is larger than the sum of its proper divisors (5079115).

3113121113 is an equidigital number, since it uses as much as digits as its factorization.

3113121113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5079114.

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

The square root of 3113121113 is about 55795.3502811838. The cubic root of 3113121113 is about 1460.1540328198.

Adding to 3113121113 its reverse (3111213113), we get a palindrome (6224334226).

The spelling of 3113121113 in words is "three billion, one hundred thirteen million, one hundred twenty-one thousand, one hundred thirteen".