215850142103 has 2 divisors, whose sum is σ = 215850142104. Its totient is φ = 215850142102.

The previous prime is 215850142021. The next prime is 215850142187. The reversal of 215850142103 is 301241058512.

215850142103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 215850142103 - 2²⁰ = 215849093527 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 215850142103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215850142003) 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, 107925071051 + 107925071052.

It is an arithmetic number, because the mean of its divisors is an integer number (107925071052).

Almost surely, 2^215850142103 is an apocalyptic number.

215850142103 is a deficient number, since it is larger than the sum of its proper divisors (1).

215850142103 is an equidigital number, since it uses as much as digits as its factorization.

215850142103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 32.

The spelling of 215850142103 in words is "two hundred fifteen billion, eight hundred fifty million, one hundred forty-two thousand, one hundred three".