13113512402240 has 28 divisors (see below), whose sum is σ = 31226551408596. Its totient is φ = 5245404960768.

The previous prime is 13113512402239. The next prime is 13113512402257. The reversal of 13113512402240 is 4220421531131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5748063790144 + 7365448612096 = 2397512^2 + 2713936^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20489862809 + ... + 20489863448.

Almost surely, 2^{13113512402240} is an apocalyptic number.

13113512402240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13113512402240 is an abundant number, since it is smaller than the sum of its proper divisors (18113039006356).

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

13113512402240 is an equidigital number, since it uses as much as digits as its factorization.

13113512402240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40979726274 (or 40979726264 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 13113512402240 its reverse (4220421531131), we get a palindrome (17333933933371).

The spelling of 13113512402240 in words is "thirteen trillion, one hundred thirteen billion, five hundred twelve million, four hundred two thousand, two hundred forty".