4342161121 has 4 divisors (see below), whose sum is σ = 4342874112. Its totient is φ = 4341448132.

The previous prime is 4342161077. The next prime is 4342161127. The reversal of 4342161121 is 1211612434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4342161121 - 2¹⁵ = 4342128353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4342161127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347281 + ... + 359566.

It is an arithmetic number, because the mean of its divisors is an integer number (1085718528).

Almost surely, 2^4342161121 is an apocalyptic number.

It is an amenable number.

4342161121 is a deficient number, since it is larger than the sum of its proper divisors (712991).

4342161121 is an equidigital number, since it uses as much as digits as its factorization.

4342161121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712990.

The product of its digits is 1152, while the sum is 25.

The square root of 4342161121 is about 65895.0766066783. The cubic root of 4342161121 is about 1631.4307536311.

Adding to 4342161121 its reverse (1211612434), we get a palindrome (5553773555).

The spelling of 4342161121 in words is "four billion, three hundred forty-two million, one hundred sixty-one thousand, one hundred twenty-one".