13531202240 has 56 divisors (see below), whose sum is σ = 32906768832. Its totient is φ = 5297315840.

The previous prime is 13531202231. The next prime is 13531202263. The reversal of 13531202240 is 4220213531.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434801 + ... + 464880.

It is an arithmetic number, because the mean of its divisors is an integer number (587620872).

Almost surely, 2^13531202240 is an apocalyptic number.

13531202240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13531202240 is an abundant number, since it is smaller than the sum of its proper divisors (19375566592).

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

13531202240 is an equidigital number, since it uses as much as digits as its factorization.

13531202240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899745 (or 899735 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 13531202240 its reverse (4220213531), we get a palindrome (17751415771).

The spelling of 13531202240 in words is "thirteen billion, five hundred thirty-one million, two hundred two thousand, two hundred forty".