20313444445 has 32 divisors (see below), whose sum is σ = 29450753280. Its totient is φ = 13139366400.

The previous prime is 20313444443. The next prime is 20313444457. The reversal of 20313444445 is 54444431302.

It is not a de Polignac number, because 20313444445 - 2¹ = 20313444443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20313444445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313444443) 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 31 ways as a sum of consecutive naturals, for example, 89395 + ... + 220495.

It is an arithmetic number, because the mean of its divisors is an integer number (920336040).

Almost surely, 2^20313444445 is an apocalyptic number.

It is an amenable number.

20313444445 is a deficient number, since it is larger than the sum of its proper divisors (9137308835).

20313444445 is a wasteful number, since it uses less digits than its factorization.

20313444445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131365.

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 20313444445 its reverse (54444431302), we get a palindrome (74757875747).

The spelling of 20313444445 in words is "twenty billion, three hundred thirteen million, four hundred forty-four thousand, four hundred forty-five".