3113143213 has 4 divisors (see below), whose sum is σ = 3114423100. Its totient is φ = 3111863328.

The previous prime is 3113143157. The next prime is 3113143237. The reversal of 3113143213 is 3123413113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3123413113 = 73 ⋅42786481.

It can be written as a sum of positive squares in 2 ways, for example, as 1308847684 + 1804295529 = 36178^2 + 42477^2 .

It is a cyclic number.

It is not a de Polignac number, because 3113143213 - 2⁹ = 3113142701 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 (3113143613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636288 + ... + 641161.

It is an arithmetic number, because the mean of its divisors is an integer number (778605775).

Almost surely, 2^3113143213 is an apocalyptic number.

It is an amenable number.

3113143213 is a deficient number, since it is larger than the sum of its proper divisors (1279887).

3113143213 is a wasteful number, since it uses less digits than its factorization.

3113143213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279886.

The product of its digits is 648, while the sum is 22.

The square root of 3113143213 is about 55795.5483260089. The cubic root of 3113143213 is about 1460.1574880155.

Adding to 3113143213 its reverse (3123413113), we get a palindrome (6236556326).

The spelling of 3113143213 in words is "three billion, one hundred thirteen million, one hundred forty-three thousand, two hundred thirteen".