215423140313 has 2 divisors, whose sum is σ = 215423140314. Its totient is φ = 215423140312.

The previous prime is 215423140301. The next prime is 215423140333. The reversal of 215423140313 is 313041324512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114780019264 + 100643121049 = 338792^2 + 317243^2 .

It is a cyclic number.

It is not a de Polignac number, because 215423140313 - 2¹⁰ = 215423139289 is a prime.

It is a super-3 number, since 3×215423140313³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (215423140333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107711570156 + 107711570157.

It is an arithmetic number, because the mean of its divisors is an integer number (107711570157).

Almost surely, 2^215423140313 is an apocalyptic number.

It is an amenable number.

215423140313 is a deficient number, since it is larger than the sum of its proper divisors (1).

215423140313 is an equidigital number, since it uses as much as digits as its factorization.

215423140313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 215423140313 its reverse (313041324512), we get a palindrome (528464464825).

The spelling of 215423140313 in words is "two hundred fifteen billion, four hundred twenty-three million, one hundred forty thousand, three hundred thirteen".