3111857339 has 2 divisors, whose sum is σ = 3111857340. Its totient is φ = 3111857338.

The previous prime is 3111857303. The next prime is 3111857341. The reversal of 3111857339 is 9337581113.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3111857339 is a prime.

Together with 3111857341, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3111857296 and 3111857305.

It is not a weakly prime, because it can be changed into another prime (3111857039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555928669 + 1555928670.

It is an arithmetic number, because the mean of its divisors is an integer number (1555928670).

Almost surely, 2^3111857339 is an apocalyptic number.

3111857339 is a deficient number, since it is larger than the sum of its proper divisors (1).

3111857339 is an equidigital number, since it uses as much as digits as its factorization.

3111857339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 41.

The square root of 3111857339 is about 55784.0240481090. The cubic root of 3111857339 is about 1459.9564225124.

The spelling of 3111857339 in words is "three billion, one hundred eleven million, eight hundred fifty-seven thousand, three hundred thirty-nine".