215315345107 has 2 divisors, whose sum is σ = 215315345108. Its totient is φ = 215315345106.

The previous prime is 215315345057. The next prime is 215315345143. The reversal of 215315345107 is 701543513512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215315345107 - 2¹¹ = 215315343059 is a prime.

It is not a weakly prime, because it can be changed into another prime (215315348107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107657672553 + 107657672554.

It is an arithmetic number, because the mean of its divisors is an integer number (107657672554).

Almost surely, 2^215315345107 is an apocalyptic number.

215315345107 is a deficient number, since it is larger than the sum of its proper divisors (1).

215315345107 is an equidigital number, since it uses as much as digits as its factorization.

215315345107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63000, while the sum is 37.

Adding to 215315345107 its reverse (701543513512), we get a palindrome (916858858619).

The spelling of 215315345107 in words is "two hundred fifteen billion, three hundred fifteen million, three hundred forty-five thousand, one hundred seven".