215205011003 has 8 divisors (see below), whose sum is σ = 218372836320. Its totient is φ = 212040984960.

The previous prime is 215205010907. The next prime is 215205011023. The reversal of 215205011003 is 300110502512.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 215205011003 - 2¹⁰ = 215205009979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215205011023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835598 + ... + 1062371.

It is an arithmetic number, because the mean of its divisors is an integer number (27296604540).

Almost surely, 2^215205011003 is an apocalyptic number.

215205011003 is a deficient number, since it is larger than the sum of its proper divisors (3167825317).

215205011003 is a wasteful number, since it uses less digits than its factorization.

215205011003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899637.

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 215205011003 its reverse (300110502512), we get a palindrome (515315513515).

The spelling of 215205011003 in words is "two hundred fifteen billion, two hundred five million, eleven thousand, three".