2112402243 has 16 divisors (see below), whose sum is σ = 3223109120. Its totient is φ = 1205508096.

The previous prime is 2112402221. The next prime is 2112402289. The reversal of 2112402243 is 3422042112.

It is not a de Polignac number, because 2112402243 - 2¹⁸ = 2112140099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (2112402293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49255 + ... + 81552.

It is an arithmetic number, because the mean of its divisors is an integer number (201444320).

Almost surely, 2^2112402243 is an apocalyptic number.

2112402243 is a deficient number, since it is larger than the sum of its proper divisors (1110706877).

2112402243 is a wasteful number, since it uses less digits than its factorization.

2112402243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131586.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2112402243 is about 45960.8773088591. The cubic root of 2112402243 is about 1283.0951793677.

Adding to 2112402243 its reverse (3422042112), we get a palindrome (5534444355).

The spelling of 2112402243 in words is "two billion, one hundred twelve million, four hundred two thousand, two hundred forty-three".