215043531210523 has 2 divisors, whose sum is σ = 215043531210524. Its totient is φ = 215043531210522.

The previous prime is 215043531210503. The next prime is 215043531210581. The reversal of 215043531210523 is 325012135340512.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 215043531210523 - 2²⁹ = 215042994339611 is a prime.

It is not a weakly prime, because it can be changed into another prime (215043531210503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107521765605261 + 107521765605262.

It is an arithmetic number, because the mean of its divisors is an integer number (107521765605262).

Almost surely, 2^{215043531210523} is an apocalyptic number.

215043531210523 is a deficient number, since it is larger than the sum of its proper divisors (1).

215043531210523 is an equidigital number, since it uses as much as digits as its factorization.

215043531210523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 215043531210523 in words is "two hundred fifteen trillion, forty-three billion, five hundred thirty-one million, two hundred ten thousand, five hundred twenty-three".