20303053445 has 8 divisors (see below), whose sum is σ = 24487338744. Its totient is φ = 16159993024.

The previous prime is 20303053399. The next prime is 20303053447. The reversal of 20303053445 is 54435030302.

It can be written as a sum of positive squares in 4 ways, for example, as 2299586116 + 18003467329 = 47954^2 + 134177^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20303053445 - 2²⁰ = 20302004869 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 (20303053447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10305134 + ... + 10307103.

It is an arithmetic number, because the mean of its divisors is an integer number (3060917343).

Almost surely, 2^20303053445 is an apocalyptic number.

It is an amenable number.

20303053445 is a deficient number, since it is larger than the sum of its proper divisors (4184285299).

20303053445 is a wasteful number, since it uses less digits than its factorization.

20303053445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20612439.

The product of its (nonzero) digits is 21600, while the sum is 29.

Adding to 20303053445 its reverse (54435030302), we get a palindrome (74738083747).

The spelling of 20303053445 in words is "twenty billion, three hundred three million, fifty-three thousand, four hundred forty-five".