13331043431240 has 32 divisors (see below), whose sum is σ = 30001937405760. Its totient is φ = 5331156984000.

The previous prime is 13331043431207. The next prime is 13331043431243. The reversal of 13331043431240 is 4213434013331.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13331043431197 and 13331043431206.

It is not an unprimeable number, because it can be changed into a prime (13331043431243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39215786 + ... + 39554265.

It is an arithmetic number, because the mean of its divisors is an integer number (937560543930).

Almost surely, 2^{13331043431240} is an apocalyptic number.

13331043431240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13331043431240 is an abundant number, since it is smaller than the sum of its proper divisors (16670893974520).

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

13331043431240 is a wasteful number, since it uses less digits than its factorization.

13331043431240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78774293 (or 78774289 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 13331043431240 its reverse (4213434013331), we get a palindrome (17544477444571).

The spelling of 13331043431240 in words is "thirteen trillion, three hundred thirty-one billion, forty-three million, four hundred thirty-one thousand, two hundred forty".