13112033420240 has 20 divisors (see below), whose sum is σ = 30485477702244. Its totient is φ = 5244813368064.

The previous prime is 13112033420221. The next prime is 13112033420243. The reversal of 13112033420240 is 4202433021131.

It can be written as a sum of positive squares in 2 ways, for example, as 1464884184976 + 11647149235264 = 1210324^2 + 3412792^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13112033420243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81950208797 + ... + 81950208956.

Almost surely, 2^{13112033420240} is an apocalyptic number.

13112033420240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13112033420240 is an abundant number, since it is smaller than the sum of its proper divisors (17373444282004).

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

13112033420240 is a wasteful number, since it uses less digits than its factorization.

13112033420240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163900417766 (or 163900417760 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 13112033420240 its reverse (4202433021131), we get a palindrome (17314466441371).

The spelling of 13112033420240 in words is "thirteen trillion, one hundred twelve billion, thirty-three million, four hundred twenty thousand, two hundred forty".