2044023013 has 4 divisors (see below), whose sum is σ = 2044150668. Its totient is φ = 2043895360.

The previous prime is 2044022993. The next prime is 2044023019. The reversal of 2044023013 is 3103204402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3103204402 = 2 ⋅1551602201.

It can be written as a sum of positive squares in 2 ways, for example, as 1857782404 + 186240609 = 43102^2 + 13647^2 .

It is a cyclic number.

It is not a de Polignac number, because 2044023013 - 2²¹ = 2041925861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2044023019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35668 + ... + 73213.

It is an arithmetic number, because the mean of its divisors is an integer number (511037667).

Almost surely, 2^2044023013 is an apocalyptic number.

It is an amenable number.

2044023013 is a deficient number, since it is larger than the sum of its proper divisors (127655).

2044023013 is a wasteful number, since it uses less digits than its factorization.

2044023013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127654.

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

The square root of 2044023013 is about 45210.8727299087. The cubic root of 2044023013 is about 1269.0982941541.

Adding to 2044023013 its reverse (3103204402), we get a palindrome (5147227415).

The spelling of 2044023013 in words is "two billion, forty-four million, twenty-three thousand, thirteen".