2220321023 has 4 divisors (see below), whose sum is σ = 2350928160. Its totient is φ = 2089713888.

The previous prime is 2220321013. The next prime is 2220321073. The reversal of 2220321023 is 3201230222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3201230222 = 2 ⋅1600615111.

It is a cyclic number.

It is not a de Polignac number, because 2220321023 - 2¹⁶ = 2220255487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 130607119 = 2220321023 / (2 + 2 + 2 + 0 + 3 + 2 + 1 + 0 + 2 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220320992 and 2220321010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220321013) 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, 65303543 + ... + 65303576.

It is an arithmetic number, because the mean of its divisors is an integer number (587732040).

Almost surely, 2^2220321023 is an apocalyptic number.

2220321023 is a deficient number, since it is larger than the sum of its proper divisors (130607137).

2220321023 is a wasteful number, since it uses less digits than its factorization.

2220321023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130607136.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2220321023 is about 47120.2825012754. The cubic root of 2220321023 is about 1304.5836270445.

Adding to 2220321023 its reverse (3201230222), we get a palindrome (5421551245).

The spelling of 2220321023 in words is "two billion, two hundred twenty million, three hundred twenty-one thousand, twenty-three".