11202320254554 has 144 divisors (see below), whose sum is σ = 28678655289024. Its totient is φ = 3132753062400.

The previous prime is 11202320254429. The next prime is 11202320254589. The reversal of 11202320254554 is 45545202320211.

11202320254554 is a `hidden beast` number, since 1 + 1 + 20 + 2 + 32 + 0 + 2 + 54 + 554 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 145086099 + ... + 145163289.

It is an arithmetic number, because the mean of its divisors is an integer number (199157328396).

Almost surely, 2^{11202320254554} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11202320254554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14339327644512).

11202320254554 is an abundant number, since it is smaller than the sum of its proper divisors (17476335034470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11202320254554 is a wasteful number, since it uses less digits than its factorization.

11202320254554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81573 (or 81557 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 11202320254554 its reverse (45545202320211), we get a palindrome (56747522574765).

The spelling of 11202320254554 in words is "eleven trillion, two hundred two billion, three hundred twenty million, two hundred fifty-four thousand, five hundred fifty-four".