200120113111 has 4 divisors (see below), whose sum is σ = 200957436000. Its totient is φ = 199282790224.

The previous prime is 200120113099. The next prime is 200120113157. The reversal of 200120113111 is 111311021002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111311021002 = 2 ⋅55655510501.

It is a cyclic number.

It is not a de Polignac number, because 200120113111 - 2³³ = 191530178519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200120113091 and 200120113100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200120113181) 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, 418661086 + ... + 418661563.

It is an arithmetic number, because the mean of its divisors is an integer number (50239359000).

Almost surely, 2^200120113111 is an apocalyptic number.

200120113111 is a deficient number, since it is larger than the sum of its proper divisors (837322889).

200120113111 is an equidigital number, since it uses as much as digits as its factorization.

200120113111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837322888.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 200120113111 its reverse (111311021002), we get a palindrome (311431134113).

The spelling of 200120113111 in words is "two hundred billion, one hundred twenty million, one hundred thirteen thousand, one hundred eleven".