4021043434123 has 4 divisors (see below), whose sum is σ = 4021074830800. Its totient is φ = 4021012037448.

The previous prime is 4021043434103. The next prime is 4021043434139. The reversal of 4021043434123 is 3214343401204.

4021043434123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 4021043434123 - 2⁵ = 4021043434091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4021043434103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15505440 + ... + 15762637.

It is an arithmetic number, because the mean of its divisors is an integer number (1005268707700).

Almost surely, 2^{4021043434123} is an apocalyptic number.

4021043434123 is a deficient number, since it is larger than the sum of its proper divisors (31396677).

4021043434123 is a wasteful number, since it uses less digits than its factorization.

4021043434123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31396676.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 4021043434123 its reverse (3214343401204), we get a palindrome (7235386835327).

The spelling of 4021043434123 in words is "four trillion, twenty-one billion, forty-three million, four hundred thirty-four thousand, one hundred twenty-three".