545131203120 has 1920 divisors, whose sum is σ = 2466150727680. Its totient is φ = 107853742080.

The previous prime is 545131203119. The next prime is 545131203263. The reversal of 545131203120 is 21302131545.

545131203120 is a `hidden beast` number, since 5 + 4 + 513 + 1 + 20 + 3 + 120 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 12677469819 + ... + 12677469861.

It is an arithmetic number, because the mean of its divisors is an integer number (1284453504).

Almost surely, 2^545131203120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545131203120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1233075363840).

545131203120 is an abundant number, since it is smaller than the sum of its proper divisors (1921019524560).

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

545131203120 is a wasteful number, since it uses less digits than its factorization.

545131203120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 545131203120 its reverse (21302131545), we get a palindrome (566433334665).

The spelling of 545131203120 in words is "five hundred forty-five billion, one hundred thirty-one million, two hundred three thousand, one hundred twenty".