310242109 has 2 divisors, whose sum is σ = 310242110. Its totient is φ = 310242108.

The previous prime is 310242103. The next prime is 310242137. The reversal of 310242109 is 901242013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 285272100 + 24970009 = 16890^2 + 4997^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-310242109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 310242109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (310242103) 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, 155121054 + 155121055.

It is an arithmetic number, because the mean of its divisors is an integer number (155121055).

Almost surely, 2^310242109 is an apocalyptic number.

It is an amenable number.

310242109 is a deficient number, since it is larger than the sum of its proper divisors (1).

310242109 is an equidigital number, since it uses as much as digits as its factorization.

310242109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 310242109 is about 17613.6909533465. The cubic root of 310242109 is about 676.9660896173.

It can be divided in two parts, 31024 and 2109, that added together give a palindrome (33133).

The spelling of 310242109 in words is "three hundred ten million, two hundred forty-two thousand, one hundred nine".