20212011011311 has 6 divisors (see below), whose sum is σ = 23511931176480. Its totient is φ = 17324580866796.

The previous prime is 20212011011239. The next prime is 20212011011333. The reversal of 20212011011311 is 11311011021202.

It is a happy number.

It is not a de Polignac number, because 20212011011311 - 2¹⁷ = 20212010880239 is a prime.

It is a super-2 number, since 2×20212011011311² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212011011371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 206245010271 + ... + 206245010368.

It is an arithmetic number, because the mean of its divisors is an integer number (3918655196080).

Almost surely, 2^{20212011011311} is an apocalyptic number.

20212011011311 is a deficient number, since it is larger than the sum of its proper divisors (3299920165169).

20212011011311 is an equidigital number, since it uses as much as digits as its factorization.

20212011011311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412490020653 (or 412490020646 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 20212011011311 its reverse (11311011021202), we get a palindrome (31523022032513).

The spelling of 20212011011311 in words is "twenty trillion, two hundred twelve billion, eleven million, eleven thousand, three hundred eleven".