20212011313111 has 4 divisors (see below), whose sum is σ = 20212296554232. Its totient is φ = 20211726071992.

The previous prime is 20212011313093. The next prime is 20212011313127. The reversal of 20212011313111 is 11131311021202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20212011313111 - 2¹⁵ = 20212011280343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212011313811) 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, 142514245 + ... + 142655998.

It is an arithmetic number, because the mean of its divisors is an integer number (5053074138558).

Almost surely, 2^{20212011313111} is an apocalyptic number.

20212011313111 is a deficient number, since it is larger than the sum of its proper divisors (285241121).

20212011313111 is an equidigital number, since it uses as much as digits as its factorization.

20212011313111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285241120.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 20212011313111 its reverse (11131311021202), we get a palindrome (31343322334313).

The spelling of 20212011313111 in words is "twenty trillion, two hundred twelve billion, eleven million, three hundred thirteen thousand, one hundred eleven".