4313022121 has 2 divisors, whose sum is σ = 4313022122. Its totient is φ = 4313022120.

The previous prime is 4313022113. The next prime is 4313022137. The reversal of 4313022121 is 1212203134.

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., 2279012121 + 2034010000 = 47739^2 + 45100^2 .

It is a cyclic number.

It is not a de Polignac number, because 4313022121 - 2³ = 4313022113 is a prime.

It is not a weakly prime, because it can be changed into another prime (4313022221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2156511060 + 2156511061.

It is an arithmetic number, because the mean of its divisors is an integer number (2156511061).

Almost surely, 2^4313022121 is an apocalyptic number.

It is an amenable number.

4313022121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4313022121 is an equidigital number, since it uses as much as digits as its factorization.

4313022121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 4313022121 is about 65673.6029238537. The cubic root of 4313022121 is about 1627.7732049140.

Adding to 4313022121 its reverse (1212203134), we get a palindrome (5525225255).

The spelling of 4313022121 in words is "four billion, three hundred thirteen million, twenty-two thousand, one hundred twenty-one".