215103124443 has 8 divisors (see below), whose sum is σ = 286882907968. Its totient is φ = 143362711944.

The previous prime is 215103124399. The next prime is 215103124459. The reversal of 215103124443 is 344421301512.

215103124443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 215103124443 - 2²⁸ = 214834688987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 215103124443.

It is not an unprimeable number, because it can be changed into a prime (215103104443) 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 in 7 ways as a sum of consecutive naturals, for example, 9830005 + ... + 9851862.

It is an arithmetic number, because the mean of its divisors is an integer number (35860363496).

Almost surely, 2^215103124443 is an apocalyptic number.

215103124443 is a deficient number, since it is larger than the sum of its proper divisors (71779783525).

215103124443 is a wasteful number, since it uses less digits than its factorization.

215103124443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19685513.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 215103124443 its reverse (344421301512), we get a palindrome (559524425955).

The spelling of 215103124443 in words is "two hundred fifteen billion, one hundred three million, one hundred twenty-four thousand, four hundred forty-three".