4302442121 has 4 divisors (see below), whose sum is σ = 4302673044. Its totient is φ = 4302211200.

The previous prime is 4302442063. The next prime is 4302442139. The reversal of 4302442121 is 1212442034.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2282928400 + 2019513721 = 47780^2 + 44939^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4302442121 is a prime.

It is a super-2 number, since 2×4302442121² = 37022016409109957282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4302442141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84800 + ... + 125681.

It is an arithmetic number, because the mean of its divisors is an integer number (1075668261).

Almost surely, 2^4302442121 is an apocalyptic number.

It is an amenable number.

4302442121 is a deficient number, since it is larger than the sum of its proper divisors (230923).

4302442121 is a wasteful number, since it uses less digits than its factorization.

4302442121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230922.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 4302442121 is about 65593.0035979448. The cubic root of 4302442121 is about 1626.4411194930.

Adding to 4302442121 its reverse (1212442034), we get a palindrome (5514884155).

The spelling of 4302442121 in words is "four billion, three hundred two million, four hundred forty-two thousand, one hundred twenty-one".