13531203045 has 24 divisors (see below), whose sum is σ = 23576896512. Its totient is φ = 7178853600.

The previous prime is 13531203041. The next prime is 13531203053. The reversal of 13531203045 is 54030213531.

13531203045 is a `hidden beast` number, since 1 + 353 + 1 + 2 + 0 + 304 + 5 = 666.

13531203045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13531203045 - 2² = 13531203041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531203041) 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 23 ways as a sum of consecutive naturals, for example, 778561 + ... + 795750.

It is an arithmetic number, because the mean of its divisors is an integer number (982370688).

Almost surely, 2^13531203045 is an apocalyptic number.

13531203045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13531203045 is a deficient number, since it is larger than the sum of its proper divisors (10045693467).

13531203045 is a wasteful number, since it uses less digits than its factorization.

13531203045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574513 (or 1574510 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 13531203045 its reverse (54030213531), we get a palindrome (67561416576).

The spelling of 13531203045 in words is "thirteen billion, five hundred thirty-one million, two hundred three thousand, forty-five".