13203550045553 has 32 divisors (see below), whose sum is σ = 15731472049920. Its totient is φ = 10842144768000.

The previous prime is 13203550045489. The next prime is 13203550045639. The reversal of 13203550045553 is 35554005530231.

It is not a de Polignac number, because 13203550045553 - 2⁶ = 13203550045489 is a prime.

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 13203550045553.

It is not an unprimeable number, because it can be changed into a prime (13203550345553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214867313 + ... + 214928753.

It is an arithmetic number, because the mean of its divisors is an integer number (491608501560).

Almost surely, 2^{13203550045553} is an apocalyptic number.

It is an amenable number.

13203550045553 is a deficient number, since it is larger than the sum of its proper divisors (2527922004367).

13203550045553 is a wasteful number, since it uses less digits than its factorization.

13203550045553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69689.

The product of its (nonzero) digits is 675000, while the sum is 41.

Adding to 13203550045553 its reverse (35554005530231), we get a palindrome (48757555575784).

The spelling of 13203550045553 in words is "thirteen trillion, two hundred three billion, five hundred fifty million, forty-five thousand, five hundred fifty-three".