20443223311203 has 64 divisors (see below), whose sum is σ = 35112412790784. Its totient is φ = 10272727920000.

The previous prime is 20443223311183. The next prime is 20443223311249. The reversal of 20443223311203 is 30211332234402.

It is a happy number.

It is not a de Polignac number, because 20443223311203 - 2²¹ = 20443221214051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20443223312203) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10889823 + ... + 12628328.

It is an arithmetic number, because the mean of its divisors is an integer number (548631449856).

Almost surely, 2^{20443223311203} is an apocalyptic number.

20443223311203 is a deficient number, since it is larger than the sum of its proper divisors (14669189479581).

20443223311203 is a wasteful number, since it uses less digits than its factorization.

20443223311203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23518296.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 20443223311203 its reverse (30211332234402), we get a palindrome (50654555545605).

The spelling of 20443223311203 in words is "twenty trillion, four hundred forty-three billion, two hundred twenty-three million, three hundred eleven thousand, two hundred three".