4020402243223 has 4 divisors (see below), whose sum is σ = 4022754733080. Its totient is φ = 4018049753368.

The previous prime is 4020402243211. The next prime is 4020402243227. The reversal of 4020402243223 is 3223422040204.

It is a happy number.

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 4020402243223 - 2¹⁷ = 4020402112151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4020402243191 and 4020402243200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020402243227) 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, 1176242365 + ... + 1176245782.

It is an arithmetic number, because the mean of its divisors is an integer number (1005688683270).

Almost surely, 2^{4020402243223} is an apocalyptic number.

4020402243223 is a deficient number, since it is larger than the sum of its proper divisors (2352489857).

4020402243223 is a wasteful number, since it uses less digits than its factorization.

4020402243223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352489856.

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 4020402243223 its reverse (3223422040204), we get a palindrome (7243824283427).

The spelling of 4020402243223 in words is "four trillion, twenty billion, four hundred two million, two hundred forty-three thousand, two hundred twenty-three".