3216123 has 6 divisors (see below), whose sum is σ = 4645524. Its totient is φ = 2144076.

The previous prime is 3216121. The next prime is 3216127.

3216123 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 3216123 - 2¹ = 3216121 is a prime.

It is a super-2 number, since 2×3216123² = 20686894302258, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 3216096 and 3216105.

It is not an unprimeable number, because it can be changed into a prime (3216121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 178665 + ... + 178682.

It is an arithmetic number, because the mean of its divisors is an integer number (774254).

Almost surely, 2^3216123 is an apocalyptic number.

3216123 is a deficient number, since it is larger than the sum of its proper divisors (1429401).

3216123 is a wasteful number, since it uses less digits than its factorization.

3216123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357353 (or 357350 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 3216123 is about 1793.3552353062. The cubic root of 3216123 is about 147.6083356167.

The spelling of 3216123 in words is "three million, two hundred sixteen thousand, one hundred twenty-three".