2316321 has 12 divisors (see below), whose sum is σ = 3823872. Its totient is φ = 1323576.

The previous prime is 2316299. The next prime is 2316323. The reversal of 2316321 is 1236132.

2316321 is a `hidden beast` number, since 2 + 31 + 632 + 1 = 666.

It is not a de Polignac number, because 2316321 - 2¹⁴ = 2299937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2316294 and 2316303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2316323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18321 + ... + 18446.

It is an arithmetic number, because the mean of its divisors is an integer number (318656).

2^2316321 is an apocalyptic number.

2316321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2316321 is a deficient number, since it is larger than the sum of its proper divisors (1507551).

2316321 is a wasteful number, since it uses less digits than its factorization.

2316321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36780 (or 36777 counting only the distinct ones).

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

The square root of 2316321 is about 1521.9464510948. The cubic root of 2316321 is about 132.3121058161.

The spelling of 2316321 in words is "two million, three hundred sixteen thousand, three hundred twenty-one".