20031311211313 has 8 divisors (see below), whose sum is σ = 20460989364480. Its totient is φ = 19601778060000.

The previous prime is 20031311211299. The next prime is 20031311211323. The reversal of 20031311211313 is 31311211313002.

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

It is a cyclic number.

It is not a de Polignac number, because 20031311211313 - 2²⁵ = 20031277656881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20031311211323) 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 7 ways as a sum of consecutive naturals, for example, 35971188 + ... + 36523813.

It is an arithmetic number, because the mean of its divisors is an integer number (2557623670560).

Almost surely, 2^{20031311211313} is an apocalyptic number.

It is an amenable number.

20031311211313 is a deficient number, since it is larger than the sum of its proper divisors (429678153167).

20031311211313 is an equidigital number, since it uses as much as digits as its factorization.

20031311211313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72500927.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 20031311211313 its reverse (31311211313002), we get a palindrome (51342522524315).

The spelling of 20031311211313 in words is "twenty trillion, thirty-one billion, three hundred eleven million, two hundred eleven thousand, three hundred thirteen".