3124321121 has 2 divisors, whose sum is σ = 3124321122. Its totient is φ = 3124321120.

The previous prime is 3124321117. The next prime is 3124321129. The reversal of 3124321121 is 1211234213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2446291600 + 678029521 = 49460^2 + 26039^2 .

It is a cyclic number.

It is not a de Polignac number, because 3124321121 - 2² = 3124321117 is a prime.

It is a super-2 number, since 2×3124321121² = 19522764934253393282, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3124321093 and 3124321102.

It is not a weakly prime, because it can be changed into another prime (3124321129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1562160560 + 1562160561.

It is an arithmetic number, because the mean of its divisors is an integer number (1562160561).

Almost surely, 2^3124321121 is an apocalyptic number.

It is an amenable number.

3124321121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3124321121 is an equidigital number, since it uses as much as digits as its factorization.

3124321121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 20.

The square root of 3124321121 is about 55895.6270293124. The cubic root of 3124321121 is about 1461.9029918797.

Adding to 3124321121 its reverse (1211234213), we get a palindrome (4335555334).

The spelling of 3124321121 in words is "three billion, one hundred twenty-four million, three hundred twenty-one thousand, one hundred twenty-one".