4021212323 has 4 divisors (see below), whose sum is σ = 4106770080. Its totient is φ = 3935654568.

The previous prime is 4021212301. The next prime is 4021212331. The reversal of 4021212323 is 3232121204.

4021212323 is digitally balanced in base 3, 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 4021212323 - 2⁸ = 4021212067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4021212295 and 4021212304.

It is not an unprimeable number, because it can be changed into a prime (4021212823) 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, 42778808 + ... + 42778901.

It is an arithmetic number, because the mean of its divisors is an integer number (1026692520).

Almost surely, 2^4021212323 is an apocalyptic number.

4021212323 is a deficient number, since it is larger than the sum of its proper divisors (85557757).

4021212323 is an equidigital number, since it uses as much as digits as its factorization.

4021212323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85557756.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 4021212323 is about 63413.0295996020. The cubic root of 4021212323 is about 1590.2021449675.

Adding to 4021212323 its reverse (3232121204), we get a palindrome (7253333527).

The spelling of 4021212323 in words is "four billion, twenty-one million, two hundred twelve thousand, three hundred twenty-three".