3124321 has 2 divisors, whose sum is σ = 3124322. Its totient is φ = 3124320.

The previous prime is 3124313. The next prime is 3124361. The reversal of 3124321 is 1234213.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3027600 + 96721 = 1740^2 + 311^2 .

It is a cyclic number.

It is not a de Polignac number, because 3124321 - 2³ = 3124313 is a prime.

It is a super-2 number, since 2×3124321² = 19522763422082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3124295 and 3124304.

It is not a weakly prime, because it can be changed into another prime (3124301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1562160 + 1562161.

It is an arithmetic number, because the mean of its divisors is an integer number (1562161).

Almost surely, 2^3124321 is an apocalyptic number.

It is an amenable number.

3124321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3124321 is an equidigital number, since it uses as much as digits as its factorization.

3124321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 16.

The square root of 3124321 is about 1767.5748923313. The cubic root of 3124321 is about 146.1902973007.

Adding to 3124321 its reverse (1234213), we get a palindrome (4358534).

The spelling of 3124321 in words is "three million, one hundred twenty-four thousand, three hundred twenty-one".