42243251223 has 4 divisors (see below), whose sum is σ = 56324334968. Its totient is φ = 28162167480.

The previous prime is 42243251207. The next prime is 42243251291. The reversal of 42243251223 is 32215234224.

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

It is not a de Polignac number, because 42243251223 - 2⁴ = 42243251207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42243251293) 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, 7040541868 + ... + 7040541873.

It is an arithmetic number, because the mean of its divisors is an integer number (14081083742).

Almost surely, 2^42243251223 is an apocalyptic number.

42243251223 is a deficient number, since it is larger than the sum of its proper divisors (14081083745).

42243251223 is a wasteful number, since it uses less digits than its factorization.

42243251223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14081083744.

The product of its digits is 23040, while the sum is 30.

Adding to 42243251223 its reverse (32215234224), we get a palindrome (74458485447).

The spelling of 42243251223 in words is "forty-two billion, two hundred forty-three million, two hundred fifty-one thousand, two hundred twenty-three".