123232215 has 32 divisors (see below), whose sum is σ = 201180672. Its totient is φ = 64400000.

The previous prime is 123232211. The next prime is 123232231. The reversal of 123232215 is 512232321.

It is not a de Polignac number, because 123232215 - 2² = 123232211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123232191 and 123232200.

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 in 31 ways as a sum of consecutive naturals, for example, 267085 + ... + 267545.

It is an arithmetic number, because the mean of its divisors is an integer number (6286896).

Almost surely, 2^123232215 is an apocalyptic number.

123232215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123232215 is a deficient number, since it is larger than the sum of its proper divisors (77948457).

123232215 is a wasteful number, since it uses less digits than its factorization.

123232215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791.

The product of its digits is 720, while the sum is 21.

The square root of 123232215 is about 11101.0006305738. Note that the first 3 decimals coincide. The cubic root of 123232215 is about 497.6317538638.

Adding to 123232215 its reverse (512232321), we get a palindrome (635464536).

The spelling of 123232215 in words is "one hundred twenty-three million, two hundred thirty-two thousand, two hundred fifteen".