4043342121 has 32 divisors (see below), whose sum is σ = 6849282048. Its totient is φ = 2063949120.

The previous prime is 4043342119. The next prime is 4043342137. The reversal of 4043342121 is 1212433404.

4043342121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4043342121 - 2¹ = 4043342119 is a prime.

It is a super-3 number, since 3×4043342121³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4043342091 and 4043342100.

It is not an unprimeable number, because it can be changed into a prime (4043342111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230421 + ... + 247346.

It is an arithmetic number, because the mean of its divisors is an integer number (214040064).

Almost surely, 2^4043342121 is an apocalyptic number.

It is an amenable number.

4043342121 is a deficient number, since it is larger than the sum of its proper divisors (2805939927).

4043342121 is a wasteful number, since it uses less digits than its factorization.

4043342121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477821.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 4043342121 is about 63587.2795533824. The cubic root of 4043342121 is about 1593.1139114704.

Adding to 4043342121 its reverse (1212433404), we get a palindrome (5255775525).

The spelling of 4043342121 in words is "four billion, forty-three million, three hundred forty-two thousand, one hundred twenty-one".