4212021423 has 4 divisors (see below), whose sum is σ = 5616028568. Its totient is φ = 2808014280.

The previous prime is 4212021413. The next prime is 4212021449. The reversal of 4212021423 is 3241202124.

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

It is not a de Polignac number, because 4212021423 - 2²⁶ = 4144912559 is a prime.

It is a super-2 number, since 2×4212021423² = 35482248935621889858, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4212021423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4212021413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 702003568 + ... + 702003573.

It is an arithmetic number, because the mean of its divisors is an integer number (1404007142).

Almost surely, 2^4212021423 is an apocalyptic number.

4212021423 is a deficient number, since it is larger than the sum of its proper divisors (1404007145).

4212021423 is a wasteful number, since it uses less digits than its factorization.

4212021423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404007144.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 4212021423 is about 64900.0880045628. The cubic root of 4212021423 is about 1614.9665216216.

Adding to 4212021423 its reverse (3241202124), we get a palindrome (7453223547).

The spelling of 4212021423 in words is "four billion, two hundred twelve million, twenty-one thousand, four hundred twenty-three".