2102442243 has 16 divisors (see below), whose sum is σ = 3075002112. Its totient is φ = 1267164000.

The previous prime is 2102442233. The next prime is 2102442257. The reversal of 2102442243 is 3422442012.

It is not a de Polignac number, because 2102442243 - 2⁸ = 2102441987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2102442233) 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, 170023 + ... + 181968.

It is an arithmetic number, because the mean of its divisors is an integer number (192187632).

Almost surely, 2^2102442243 is an apocalyptic number.

2102442243 is a deficient number, since it is larger than the sum of its proper divisors (972559869).

2102442243 is a wasteful number, since it uses less digits than its factorization.

2102442243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352186.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 2102442243 is about 45852.3962623547. The cubic root of 2102442243 is about 1281.0753989384.

Adding to 2102442243 its reverse (3422442012), we get a palindrome (5524884255).

The spelling of 2102442243 in words is "two billion, one hundred two million, four hundred forty-two thousand, two hundred forty-three".