2101112311 has 8 divisors (see below), whose sum is σ = 2157749264. Its totient is φ = 2044828800.

The previous prime is 2101112309. The next prime is 2101112323. The reversal of 2101112311 is 1132111012.

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 not a de Polignac number, because 2101112311 - 2¹ = 2101112309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2101112291 and 2101112300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101112341) 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, 76290 + ... + 100111.

It is an arithmetic number, because the mean of its divisors is an integer number (269718658).

Almost surely, 2^2101112311 is an apocalyptic number.

2101112311 is a deficient number, since it is larger than the sum of its proper divisors (56636953).

2101112311 is a wasteful number, since it uses less digits than its factorization.

2101112311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176721.

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

The square root of 2101112311 is about 45837.8916509038. The cubic root of 2101112311 is about 1280.8052206822.

Adding to 2101112311 its reverse (1132111012), we get a palindrome (3233223323).

The spelling of 2101112311 in words is "two billion, one hundred one million, one hundred twelve thousand, three hundred eleven".