2112144243 has 32 divisors (see below), whose sum is σ = 3292192512. Its totient is φ = 1190246400.

The previous prime is 2112144241. The next prime is 2112144283. The reversal of 2112144243 is 3424412112.

It is not a de Polignac number, because 2112144243 - 2¹ = 2112144241 is a prime.

It is a super-2 number, since 2×2112144243² = 8922306606476086098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2112144241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23883 + ... + 69243.

It is an arithmetic number, because the mean of its divisors is an integer number (102881016).

Almost surely, 2^2112144243 is an apocalyptic number.

2112144243 is a deficient number, since it is larger than the sum of its proper divisors (1180048269).

2112144243 is a wasteful number, since it uses less digits than its factorization.

2112144243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45475.

The product of its digits is 1536, while the sum is 24.

The square root of 2112144243 is about 45958.0704882178. The cubic root of 2112144243 is about 1283.0429399429.

Adding to 2112144243 its reverse (3424412112), we get a palindrome (5536556355).

The spelling of 2112144243 in words is "two billion, one hundred twelve million, one hundred forty-four thousand, two hundred forty-three".