42243303123 has 18 divisors (see below), whose sum is σ = 70980244764. Its totient is φ = 24139030104.

The previous prime is 42243303121. The next prime is 42243303143. The reversal of 42243303123 is 32130334224.

It is not a de Polignac number, because 42243303123 - 2¹ = 42243303121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42243303121) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 47894461 + ... + 47895342.

Almost surely, 2^42243303123 is an apocalyptic number.

42243303123 is a deficient number, since it is larger than the sum of its proper divisors (28736941641).

42243303123 is a wasteful number, since it uses less digits than its factorization.

42243303123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95789823 (or 95789813 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 42243303123 its reverse (32130334224), we get a palindrome (74373637347).

The spelling of 42243303123 in words is "forty-two billion, two hundred forty-three million, three hundred three thousand, one hundred twenty-three".