3111313 has 2 divisors, whose sum is σ = 3111314. Its totient is φ = 3111312.

The previous prime is 3111301. The next prime is 3111319. The reversal of 3111313 is 3131113.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2765569 + 345744 = 1663^2 + 588^2 .

It is an emirp because it is prime and its reverse (3131113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3111313 - 2⁵ = 3111281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3111293 and 3111302.

It is not a weakly prime, because it can be changed into another prime (3111319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555656 + 1555657.

It is an arithmetic number, because the mean of its divisors is an integer number (1555657).

Almost surely, 2^3111313 is an apocalyptic number.

It is an amenable number.

3111313 is a deficient number, since it is larger than the sum of its proper divisors (1).

3111313 is an equidigital number, since it uses as much as digits as its factorization.

3111313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27, while the sum is 13.

The square root of 3111313 is about 1763.8914365686. The cubic root of 3111313 is about 145.9871290336.

Adding to 3111313 its reverse (3131113), we get a palindrome (6242426).

It can be divided in two parts, 31 and 11313, that multiplied together give a triangular number (350703 = T₈₃₇).

The spelling of 3111313 in words is "three million, one hundred eleven thousand, three hundred thirteen".