20116711223143 has 4 divisors (see below), whose sum is σ = 20371353137440. Its totient is φ = 19862069308848.

The previous prime is 20116711223137. The next prime is 20116711223149. The reversal of 20116711223143 is 34132211761102.

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

It is an interprime number because it is at equal distance from previous prime (20116711223137) and next prime (20116711223149).

It is a cyclic number.

It is not a de Polignac number, because 20116711223143 - 2⁵ = 20116711223111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20116711223099 and 20116711223108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20116711223149) 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, 127320957030 + ... + 127320957187.

It is an arithmetic number, because the mean of its divisors is an integer number (5092838284360).

Almost surely, 2^{20116711223143} is an apocalyptic number.

20116711223143 is a deficient number, since it is larger than the sum of its proper divisors (254641914297).

20116711223143 is an equidigital number, since it uses as much as digits as its factorization.

20116711223143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254641914296.

The product of its (nonzero) digits is 12096, while the sum is 34.

Adding to 20116711223143 its reverse (34132211761102), we get a palindrome (54248922984245).

The spelling of 20116711223143 in words is "twenty trillion, one hundred sixteen billion, seven hundred eleven million, two hundred twenty-three thousand, one hundred forty-three".