123232216 has 8 divisors (see below), whose sum is σ = 231060420. Its totient is φ = 61616104.

The previous prime is 123232211. The next prime is 123232231. The reversal of 123232216 is 612232321.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123232211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7702006 + ... + 7702021.

Almost surely, 2^123232216 is an apocalyptic number.

It is an amenable number.

123232216 is a deficient number, since it is larger than the sum of its proper divisors (107828204).

123232216 is a wasteful number, since it uses less digits than its factorization.

123232216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15404033 (or 15404029 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 123232216 is about 11101.0006756148. Note that the first 3 decimals coincide. The cubic root of 123232216 is about 497.6317552099.

Adding to 123232216 its reverse (612232321), we get a palindrome (735464537).

The spelling of 123232216 in words is "one hundred twenty-three million, two hundred thirty-two thousand, two hundred sixteen".