2113201111 has 8 divisors (see below), whose sum is σ = 2415942144. Its totient is φ = 1810673880.

The previous prime is 2113201093. The next prime is 2113201117. The reversal of 2113201111 is 1111023112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2113201111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2113201091 and 2113201100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113201117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31675 + ... + 72316.

It is an arithmetic number, because the mean of its divisors is an integer number (301992768).

Almost surely, 2^2113201111 is an apocalyptic number.

2113201111 is a deficient number, since it is larger than the sum of its proper divisors (302741033).

2113201111 is a wasteful number, since it uses less digits than its factorization.

2113201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106901.

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

The square root of 2113201111 is about 45969.5672265902. The cubic root of 2113201111 is about 1283.2569059037.

Adding to 2113201111 its reverse (1111023112), we get a palindrome (3224224223).

The spelling of 2113201111 in words is "two billion, one hundred thirteen million, two hundred one thousand, one hundred eleven".