2123111107 has 8 divisors (see below), whose sum is σ = 2287582640. Its totient is φ = 1958804640.

The previous prime is 2123111101. The next prime is 2123111131. The reversal of 2123111107 is 7011113212.

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

It is not a de Polignac number, because 2123111107 - 2³ = 2123111099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123111101) 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, 13869 + ... + 66622.

It is an arithmetic number, because the mean of its divisors is an integer number (285947830).

Almost surely, 2^2123111107 is an apocalyptic number.

2123111107 is a deficient number, since it is larger than the sum of its proper divisors (164471533).

2123111107 is a wasteful number, since it uses less digits than its factorization.

2123111107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82533.

The product of its (nonzero) digits is 84, while the sum is 19.

The square root of 2123111107 is about 46077.2298103955. The cubic root of 2123111107 is about 1285.2597509694.

Adding to 2123111107 its reverse (7011113212), we get a palindrome (9134224319).

The spelling of 2123111107 in words is "two billion, one hundred twenty-three million, one hundred eleven thousand, one hundred seven".