216460603123 has 4 divisors (see below), whose sum is σ = 217259351008. Its totient is φ = 215661855240.

The previous prime is 216460603063. The next prime is 216460603129. The reversal of 216460603123 is 321306064612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216460603123 is a prime.

It is a super-3 number, since 3×216460603123³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216460603129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399373536 + ... + 399374077.

It is an arithmetic number, because the mean of its divisors is an integer number (54314837752).

Almost surely, 2^216460603123 is an apocalyptic number.

216460603123 is a deficient number, since it is larger than the sum of its proper divisors (798747885).

216460603123 is an equidigital number, since it uses as much as digits as its factorization.

216460603123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798747884.

The product of its (nonzero) digits is 31104, while the sum is 34.

Adding to 216460603123 its reverse (321306064612), we get a palindrome (537766667735).

The spelling of 216460603123 in words is "two hundred sixteen billion, four hundred sixty million, six hundred three thousand, one hundred twenty-three".