315121141109 has 2 divisors, whose sum is σ = 315121141110. Its totient is φ = 315121141108.

The previous prime is 315121141103. The next prime is 315121141141. The reversal of 315121141109 is 901141121513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 272786844100 + 42334297009 = 522290^2 + 205753^2 .

It is a cyclic number.

It is not a de Polignac number, because 315121141109 - 2⁸ = 315121140853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315121141103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157560570554 + 157560570555.

It is an arithmetic number, because the mean of its divisors is an integer number (157560570555).

Almost surely, 2^315121141109 is an apocalyptic number.

It is an amenable number.

315121141109 is a deficient number, since it is larger than the sum of its proper divisors (1).

315121141109 is an equidigital number, since it uses as much as digits as its factorization.

315121141109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 29.

The spelling of 315121141109 in words is "three hundred fifteen billion, one hundred twenty-one million, one hundred forty-one thousand, one hundred nine".