42103342345 has 4 divisors (see below), whose sum is σ = 50524010820. Its totient is φ = 33682673872.

The previous prime is 42103342343. The next prime is 42103342373. The reversal of 42103342345 is 54324330124.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22161383689 + 19941958656 = 148867^2 + 141216^2 .

It is a cyclic number.

It is not a de Polignac number, because 42103342345 - 2¹ = 42103342343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42103342343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4210334230 + ... + 4210334239.

It is an arithmetic number, because the mean of its divisors is an integer number (12631002705).

Almost surely, 2^42103342345 is an apocalyptic number.

It is an amenable number.

42103342345 is a deficient number, since it is larger than the sum of its proper divisors (8420668475).

42103342345 is an equidigital number, since it uses as much as digits as its factorization.

42103342345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8420668474.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 42103342345 its reverse (54324330124), we get a palindrome (96427672469).

The spelling of 42103342345 in words is "forty-two billion, one hundred three million, three hundred forty-two thousand, three hundred forty-five".