2102112427 has 4 divisors (see below), whose sum is σ = 2102296240. Its totient is φ = 2101928616.

The previous prime is 2102112409. The next prime is 2102112437. The reversal of 2102112427 is 7242112012.

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

It is a cyclic number.

It is not a de Polignac number, because 2102112427 - 2¹¹ = 2102110379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102112398 and 2102112407.

It is not an unprimeable number, because it can be changed into a prime (2102112437) 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, 73527 + ... + 98032.

It is an arithmetic number, because the mean of its divisors is an integer number (525574060).

Almost surely, 2^2102112427 is an apocalyptic number.

2102112427 is a deficient number, since it is larger than the sum of its proper divisors (183813).

2102112427 is a wasteful number, since it uses less digits than its factorization.

2102112427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183812.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 2102112427 is about 45848.7996244176. The cubic root of 2102112427 is about 1281.0084068072.

Adding to 2102112427 its reverse (7242112012), we get a palindrome (9344224439).

The spelling of 2102112427 in words is "two billion, one hundred two million, one hundred twelve thousand, four hundred twenty-seven".