3101212109 has 2 divisors, whose sum is σ = 3101212110. Its totient is φ = 3101212108.

The previous prime is 3101212099. The next prime is 3101212241. The reversal of 3101212109 is 9012121013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1810247209 + 1290964900 = 42547^2 + 35930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3101212109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3101215109) 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 as a sum of consecutive naturals, namely, 1550606054 + 1550606055.

It is an arithmetic number, because the mean of its divisors is an integer number (1550606055).

Almost surely, 2^3101212109 is an apocalyptic number.

It is an amenable number.

3101212109 is a deficient number, since it is larger than the sum of its proper divisors (1).

3101212109 is an equidigital number, since it uses as much as digits as its factorization.

3101212109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 3101212109 is about 55688.5276246374. The cubic root of 3101212109 is about 1458.2897514733.

The spelling of 3101212109 in words is "three billion, one hundred one million, two hundred twelve thousand, one hundred nine".