4021423132243 has 16 divisors (see below), whose sum is σ = 4411359885312. Its totient is φ = 3635557204000.

The previous prime is 4021423132229. The next prime is 4021423132247. The reversal of 4021423132243 is 3422313241204.

It is a cyclic number.

It is not a de Polignac number, because 4021423132243 - 2⁹ = 4021423131731 is a prime.

It is a super-2 number, since 2×4021423132243² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4021423132247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6430713 + ... + 7028293.

It is an arithmetic number, because the mean of its divisors is an integer number (275709992832).

Almost surely, 2^{4021423132243} is an apocalyptic number.

4021423132243 is a deficient number, since it is larger than the sum of its proper divisors (389936753069).

4021423132243 is a wasteful number, since it uses less digits than its factorization.

4021423132243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600986.

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

Adding to 4021423132243 its reverse (3422313241204), we get a palindrome (7443736373447).

The spelling of 4021423132243 in words is "four trillion, twenty-one billion, four hundred twenty-three million, one hundred thirty-two thousand, two hundred forty-three".