4011220423 has 4 divisors (see below), whose sum is σ = 4584251920. Its totient is φ = 3438188928.

The previous prime is 4011220399. The next prime is 4011220427. The reversal of 4011220423 is 3240221104.

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 4011220423 - 2²⁹ = 3474349511 is a prime.

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 4011220423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4011220427) 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, 286515738 + ... + 286515751.

It is an arithmetic number, because the mean of its divisors is an integer number (1146062980).

Almost surely, 2^4011220423 is an apocalyptic number.

4011220423 is a deficient number, since it is larger than the sum of its proper divisors (573031497).

4011220423 is an equidigital number, since it uses as much as digits as its factorization.

4011220423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573031496.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 4011220423 is about 63334.1963160503. The cubic root of 4011220423 is about 1588.8839422161.

Adding to 4011220423 its reverse (3240221104), we get a palindrome (7251441527).

The spelling of 4011220423 in words is "four billion, eleven million, two hundred twenty thousand, four hundred twenty-three".