1044520203 has 4 divisors (see below), whose sum is σ = 1392693608. Its totient is φ = 696346800.

The previous prime is 1044520189. The next prime is 1044520259. The reversal of 1044520203 is 3020254401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3020254401 = 3 ⋅1006751467.

It is not a de Polignac number, because 1044520203 - 2⁹ = 1044519691 is a prime.

It is a super-2 number, since 2×1044520203² = 2182044908950322418, which contains 22 as substring.

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 1044520203.

It is not an unprimeable number, because it can be changed into a prime (1044520403) 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, 174086698 + ... + 174086703.

It is an arithmetic number, because the mean of its divisors is an integer number (348173402).

Almost surely, 2^1044520203 is an apocalyptic number.

1044520203 is a deficient number, since it is larger than the sum of its proper divisors (348173405).

1044520203 is an equidigital number, since it uses as much as digits as its factorization.

1044520203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348173404.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1044520203 is about 32319.0377796122. The cubic root of 1044520203 is about 1014.6251304804.

Adding to 1044520203 its reverse (3020254401), we get a palindrome (4064774604).

The spelling of 1044520203 in words is "one billion, forty-four million, five hundred twenty thousand, two hundred three".