13331043442040 has 64 divisors (see below), whose sum is σ = 30420967772160. Its totient is φ = 5256680768640.

The previous prime is 13331043442027. The next prime is 13331043442043. The reversal of 13331043442040 is 4024434013331.

It is a junction number, because it is equal to n+sod(n) for n = 13331043441988 and 13331043442006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13331043442043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23700137 + ... + 24256103.

It is an arithmetic number, because the mean of its divisors is an integer number (475327621440).

Almost surely, 2^{13331043442040} is an apocalyptic number.

13331043442040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13331043442040 is an abundant number, since it is smaller than the sum of its proper divisors (17089924330120).

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

13331043442040 is a wasteful number, since it uses less digits than its factorization.

13331043442040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564492 (or 564488 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 13331043442040 its reverse (4024434013331), we get a palindrome (17355477455371).

The spelling of 13331043442040 in words is "thirteen trillion, three hundred thirty-one billion, forty-three million, four hundred forty-two thousand, forty".