20112021310311 has 24 divisors (see below), whose sum is σ = 33277473334560. Its totient is φ = 11466041826816.

The previous prime is 20112021310307. The next prime is 20112021310319. The reversal of 20112021310311 is 11301312021102.

20112021310311 is a `hidden beast` number, since 2 + 0 + 1 + 1 + 20 + 21 + 310 + 311 = 666.

It is not a de Polignac number, because 20112021310311 - 2² = 20112021310307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112021310319) 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 23 ways as a sum of consecutive naturals, for example, 368608326 + ... + 368662883.

It is an arithmetic number, because the mean of its divisors is an integer number (1386561388940).

Almost surely, 2^{20112021310311} is an apocalyptic number.

20112021310311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20112021310311 is a deficient number, since it is larger than the sum of its proper divisors (13165452024249).

20112021310311 is a wasteful number, since it uses less digits than its factorization.

20112021310311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737271655 (or 737271652 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 20112021310311 its reverse (11301312021102), we get a palindrome (31413333331413).

The spelling of 20112021310311 in words is "twenty trillion, one hundred twelve billion, twenty-one million, three hundred ten thousand, three hundred eleven".