13112257073840 has 160 divisors (see below), whose sum is σ = 34020995850240. Its totient is φ = 4678607692800.

The previous prime is 13112257073837. The next prime is 13112257073849. The reversal of 13112257073840 is 4837075221131.

It is a junction number, because it is equal to n+sod(n) for n = 13112257073791 and 13112257073800.

It is not an unprimeable number, because it can be changed into a prime (13112257073849) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2017016 + ... + 5503895.

It is an arithmetic number, because the mean of its divisors is an integer number (212631224064).

Almost surely, 2^{13112257073840} is an apocalyptic number.

13112257073840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13112257073840 is an abundant number, since it is smaller than the sum of its proper divisors (20908738776400).

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

13112257073840 is a wasteful number, since it uses less digits than its factorization.

13112257073840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7521011 (or 7521005 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 13112257073840 in words is "thirteen trillion, one hundred twelve billion, two hundred fifty-seven million, seventy-three thousand, eight hundred forty".