2220031423 has 4 divisors (see below), whose sum is σ = 2220416320. Its totient is φ = 2219646528.

The previous prime is 2220031381. The next prime is 2220031439. The reversal of 2220031423 is 3241300222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2220031423 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 2220031423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220031123) 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, 183663 + ... + 195376.

It is an arithmetic number, because the mean of its divisors is an integer number (555104080).

Almost surely, 2^2220031423 is an apocalyptic number.

2220031423 is a deficient number, since it is larger than the sum of its proper divisors (384897).

2220031423 is an equidigital number, since it uses as much as digits as its factorization.

2220031423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384896.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2220031423 is about 47117.2094143955. The cubic root of 2220031423 is about 1304.5269049397.

Adding to 2220031423 its reverse (3241300222), we get a palindrome (5461331645).

The spelling of 2220031423 in words is "two billion, two hundred twenty million, thirty-one thousand, four hundred twenty-three".