42103440243 has 24 divisors (see below), whose sum is σ = 63010677600. Its totient is φ = 27059069184.

The previous prime is 42103440227. The next prime is 42103440263. The reversal of 42103440243 is 34204430124.

It is a happy number.

42103440243 is a `hidden beast` number, since 4 + 210 + 3 + 4 + 402 + 43 = 666.

It is not a de Polignac number, because 42103440243 - 2⁴ = 42103440227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42103440263) 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, 44203 + ... + 293531.

It is an arithmetic number, because the mean of its divisors is an integer number (2625444900).

Almost surely, 2^42103440243 is an apocalyptic number.

42103440243 is a deficient number, since it is larger than the sum of its proper divisors (20907237357).

42103440243 is a wasteful number, since it uses less digits than its factorization.

42103440243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250011 (or 250008 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 42103440243 its reverse (34204430124), we get a palindrome (76307870367).

The spelling of 42103440243 in words is "forty-two billion, one hundred three million, four hundred forty thousand, two hundred forty-three".