216000123 has 8 divisors (see below), whose sum is σ = 288242448. Its totient is φ = 143878944.

The previous prime is 216000119. The next prime is 216000131. The reversal of 216000123 is 321000612.

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

It is not a de Polignac number, because 216000123 - 2² = 216000119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216000193) 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, 26040 + ... + 33317.

It is an arithmetic number, because the mean of its divisors is an integer number (36030306).

Almost surely, 2^216000123 is an apocalyptic number.

216000123 is a deficient number, since it is larger than the sum of its proper divisors (72242325).

216000123 is a wasteful number, since it uses less digits than its factorization.

216000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60573.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 216000123 is about 14696.9426412435. The cubic root of 216000123 is about 600.0001138889. Note that the first 3 decimals are identical.

Adding to 216000123 its reverse (321000612), we get a palindrome (537000735).

The spelling of 216000123 in words is "two hundred sixteen million, one hundred twenty-three", and thus it is an aban number.