4021423220234 has 32 divisors (see below), whose sum is σ = 7071960061056. Its totient is φ = 1679146096320.

The previous prime is 4021423220233. The next prime is 4021423220239. The reversal of 4021423220234 is 4320223241204.

It is a junction number, because it is equal to n+sod(n) for n = 4021423220197 and 4021423220206.

It is not an unprimeable number, because it can be changed into a prime (4021423220233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8174237 + ... + 8652224.

It is an arithmetic number, because the mean of its divisors is an integer number (220998751908).

Almost surely, 2^{4021423220234} is an apocalyptic number.

4021423220234 is a deficient number, since it is larger than the sum of its proper divisors (3050536840822).

4021423220234 is a wasteful number, since it uses less digits than its factorization.

4021423220234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16826910.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 4021423220234 its reverse (4320223241204), we get a palindrome (8341646461438).

The spelling of 4021423220234 in words is "four trillion, twenty-one billion, four hundred twenty-three million, two hundred twenty thousand, two hundred thirty-four".