2044223665123 has 4 divisors (see below), whose sum is σ = 2151814384360. Its totient is φ = 1936632945888.

The previous prime is 2044223665109. The next prime is 2044223665157. The reversal of 2044223665123 is 3215663224402.

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-2044223665123 is a prime.

It is a super-2 number, since 2×2044223665123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2044223665163) 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, 53795359590 + ... + 53795359627.

It is an arithmetic number, because the mean of its divisors is an integer number (537953596090).

Almost surely, 2^{2044223665123} is an apocalyptic number.

2044223665123 is a deficient number, since it is larger than the sum of its proper divisors (107590719237).

2044223665123 is a wasteful number, since it uses less digits than its factorization.

2044223665123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107590719236.

The product of its (nonzero) digits is 414720, while the sum is 40.

Adding to 2044223665123 its reverse (3215663224402), we get a palindrome (5259886889525).

The spelling of 2044223665123 in words is "two trillion, forty-four billion, two hundred twenty-three million, six hundred sixty-five thousand, one hundred twenty-three".