13112009212840 has 32 divisors (see below), whose sum is σ = 30784717284480. Its totient is φ = 5016768741952.

The previous prime is 13112009212837. The next prime is 13112009212847. The reversal of 13112009212840 is 4821290021131.

13112009212840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13112009212796 and 13112009212805.

It is not an unprimeable number, because it can be changed into a prime (13112009212847) 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, 7126091044 + ... + 7126092883.

It is an arithmetic number, because the mean of its divisors is an integer number (962022415140).

Almost surely, 2^{13112009212840} is an apocalyptic number.

13112009212840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13112009212840 is an abundant number, since it is smaller than the sum of its proper divisors (17672708071640).

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

13112009212840 is a wasteful number, since it uses less digits than its factorization.

13112009212840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14252183961 (or 14252183957 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

Adding to 13112009212840 its reverse (4821290021131), we get a palindrome (17933299233971).

The spelling of 13112009212840 in words is "thirteen trillion, one hundred twelve billion, nine million, two hundred twelve thousand, eight hundred forty".