3111103109 has 2 divisors, whose sum is σ = 3111103110. Its totient is φ = 3111103108.

The previous prime is 3111103057. The next prime is 3111103129. The reversal of 3111103109 is 9013011113.

It is an a-pointer prime, because the next prime (3111103129) can be obtained adding 3111103109 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2308514209 + 802588900 = 48047^2 + 28330^2 .

It is a cyclic number.

It is not a de Polignac number, because 3111103109 - 2²⁴ = 3094325893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3111103129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555551554 + 1555551555.

It is an arithmetic number, because the mean of its divisors is an integer number (1555551555).

Almost surely, 2^3111103109 is an apocalyptic number.

It is an amenable number.

3111103109 is a deficient number, since it is larger than the sum of its proper divisors (1).

3111103109 is an equidigital number, since it uses as much as digits as its factorization.

3111103109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81, while the sum is 20.

The square root of 3111103109 is about 55777.2633695846. The cubic root of 3111103109 is about 1459.8384616735.

The spelling of 3111103109 in words is "three billion, one hundred eleven million, one hundred three thousand, one hundred nine".