2111040243 has 24 divisors (see below), whose sum is σ = 3291047760. Its totient is φ = 1296250560.

The previous prime is 2111040227. The next prime is 2111040251. The reversal of 2111040243 is 3420401112.

2111040243 is a `hidden beast` number, since 211 + 10 + 402 + 43 = 666.

It is not a de Polignac number, because 2111040243 - 2⁴ = 2111040227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2111040443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34368 + ... + 73506.

It is an arithmetic number, because the mean of its divisors is an integer number (137126990).

Almost surely, 2^2111040243 is an apocalyptic number.

2111040243 is a deficient number, since it is larger than the sum of its proper divisors (1180007517).

2111040243 is a wasteful number, since it uses less digits than its factorization.

2111040243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39619 (or 39616 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2111040243 is about 45946.0579701893. The cubic root of 2111040243 is about 1282.8193557384.

Adding to 2111040243 its reverse (3420401112), we get a palindrome (5531441355).

The spelling of 2111040243 in words is "two billion, one hundred eleven million, forty thousand, two hundred forty-three".