20112030122311 has 4 divisors (see below), whose sum is σ = 20112101202712. Its totient is φ = 20111959041912.

The previous prime is 20112030122263. The next prime is 20112030122341. The reversal of 20112030122311 is 11322103021102.

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 20112030122311 - 2⁷ = 20112030122183 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 (20112030122341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35114076 + ... + 35682241.

It is an arithmetic number, because the mean of its divisors is an integer number (5028025300678).

Almost surely, 2^{20112030122311} is an apocalyptic number.

20112030122311 is a deficient number, since it is larger than the sum of its proper divisors (71080401).

20112030122311 is an equidigital number, since it uses as much as digits as its factorization.

20112030122311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71080400.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20112030122311 its reverse (11322103021102), we get a palindrome (31434133143413).

It can be divided in two parts, 20112030 and 122311, that added together give a triangular number (20234341 = T₆₃₆₁).

The spelling of 20112030122311 in words is "twenty trillion, one hundred twelve billion, thirty million, one hundred twenty-two thousand, three hundred eleven".