3111110161 has 4 divisors (see below), whose sum is σ = 3112035892. Its totient is φ = 3110184432.

The previous prime is 3111110153. The next prime is 3111110173. The reversal of 3111110161 is 1610111113.

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 2998219536 + 112890625 = 54756^2 + 10625^2 .

It is a cyclic number.

It is not a de Polignac number, because 3111110161 - 2³ = 3111110153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3111110461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457806 + ... + 464551.

It is an arithmetic number, because the mean of its divisors is an integer number (778008973).

Almost surely, 2^3111110161 is an apocalyptic number.

It is an amenable number.

3111110161 is a deficient number, since it is larger than the sum of its proper divisors (925731).

3111110161 is an equidigital number, since it uses as much as digits as its factorization.

3111110161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925730.

The product of its (nonzero) digits is 18, while the sum is 16.

The square root of 3111110161 is about 55777.3265852712. The cubic root of 3111110161 is about 1459.8395646877.

Adding to 3111110161 its reverse (1610111113), we get a palindrome (4721221274).

The spelling of 3111110161 in words is "three billion, one hundred eleven million, one hundred ten thousand, one hundred sixty-one".