13012037040 has 80 divisors (see below), whose sum is σ = 40353274368. Its totient is φ = 3468503808.

The previous prime is 13012037011. The next prime is 13012037041. The reversal of 13012037040 is 4073021031.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 13012036998 and 13012037016.

It is not an unprimeable number, because it can be changed into a prime (13012037041) 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, 693219 + ... + 711741.

Almost surely, 2^13012037040 is an apocalyptic number.

13012037040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13012037040 is an abundant number, since it is smaller than the sum of its proper divisors (27341237328).

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

13012037040 is a wasteful number, since it uses less digits than its factorization.

13012037040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21466 (or 21460 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

Adding to 13012037040 its reverse (4073021031), we get a palindrome (17085058071).

The spelling of 13012037040 in words is "thirteen billion, twelve million, thirty-seven thousand, forty".