13020020131318 has 8 divisors (see below), whose sum is σ = 19611067667400. Its totient is φ = 6482997575520.

The previous prime is 13020020131291. The next prime is 13020020131319. The reversal of 13020020131318 is 81313102002031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13020020131292 and 13020020131301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020020131319) 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, 13506244468 + ... + 13506245431.

It is an arithmetic number, because the mean of its divisors is an integer number (2451383458425).

Almost surely, 2^{13020020131318} is an apocalyptic number.

13020020131318 is a deficient number, since it is larger than the sum of its proper divisors (6591047536082).

13020020131318 is a wasteful number, since it uses less digits than its factorization.

13020020131318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27012490142.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 13020020131318 its reverse (81313102002031), we get a palindrome (94333122133349).

The spelling of 13020020131318 in words is "thirteen trillion, twenty billion, twenty million, one hundred thirty-one thousand, three hundred eighteen".