13040431423012 has 48 divisors (see below), whose sum is σ = 27454857902080. Its totient is φ = 5294357056800.

The previous prime is 13040431423009. The next prime is 13040431423037. The reversal of 13040431423012 is 21032413404031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10706437 + ... + 11862067.

Almost surely, 2^{13040431423012} is an apocalyptic number.

It is an amenable number.

13040431423012 is an abundant number, since it is smaller than the sum of its proper divisors (14414426479068).

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

13040431423012 is a wasteful number, since it uses less digits than its factorization.

13040431423012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176872 (or 1176870 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 13040431423012 its reverse (21032413404031), we get a palindrome (34072844827043).

The spelling of 13040431423012 in words is "thirteen trillion, forty billion, four hundred thirty-one million, four hundred twenty-three thousand, twelve".