216417121203 has 8 divisors (see below), whose sum is σ = 290066927616. Its totient is φ = 143522697800.

The previous prime is 216417121189. The next prime is 216417121231. The reversal of 216417121203 is 302121714612.

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 216417121203 - 2⁶ = 216417121139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216417121003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188845083 + ... + 188846228.

It is an arithmetic number, because the mean of its divisors is an integer number (36258365952).

Almost surely, 2^216417121203 is an apocalyptic number.

216417121203 is a deficient number, since it is larger than the sum of its proper divisors (73649806413).

216417121203 is a wasteful number, since it uses less digits than its factorization.

216417121203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377691505.

The product of its (nonzero) digits is 4032, while the sum is 30.

Adding to 216417121203 its reverse (302121714612), we get a palindrome (518538835815).

The spelling of 216417121203 in words is "two hundred sixteen billion, four hundred seventeen million, one hundred twenty-one thousand, two hundred three".