3113212009 has 2 divisors, whose sum is σ = 3113212010. Its totient is φ = 3113212008.

The previous prime is 3113212007. The next prime is 3113212033. The reversal of 3113212009 is 9002123113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1627880409 + 1485331600 = 40347^2 + 38540^2 .

It is an emirp because it is prime and its reverse (9002123113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3113212009 - 2¹ = 3113212007 is a prime.

Together with 3113212007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3113212007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1556606004 + 1556606005.

It is an arithmetic number, because the mean of its divisors is an integer number (1556606005).

Almost surely, 2^3113212009 is an apocalyptic number.

It is an amenable number.

3113212009 is a deficient number, since it is larger than the sum of its proper divisors (1).

3113212009 is an equidigital number, since it uses as much as digits as its factorization.

3113212009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 3113212009 is about 55796.1648233998. The cubic root of 3113212009 is about 1460.1682437317.

The spelling of 3113212009 in words is "three billion, one hundred thirteen million, two hundred twelve thousand, nine".