13113031002020 has 12 divisors (see below), whose sum is σ = 27537365104284. Its totient is φ = 5245212400800.

The previous prime is 13113031002013. The next prime is 13113031002023. The reversal of 13113031002020 is 2020013031131.

It can be written as a sum of positive squares in 2 ways, for example, as 8091658133056 + 5021372868964 = 2844584^2 + 2240842^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13113031002020.

It is not an unprimeable number, because it can be changed into a prime (13113031002023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327825775031 + ... + 327825775070.

It is an arithmetic number, because the mean of its divisors is an integer number (2294780425357).

Almost surely, 2^{13113031002020} is an apocalyptic number.

13113031002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13113031002020 is an abundant number, since it is smaller than the sum of its proper divisors (14424334102264).

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

13113031002020 is a wasteful number, since it uses less digits than its factorization.

13113031002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655651550110 (or 655651550108 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13113031002020 its reverse (2020013031131), we get a palindrome (15133044033151).

The spelling of 13113031002020 in words is "thirteen trillion, one hundred thirteen billion, thirty-one million, two thousand, twenty".