42251123354443 has 8 divisors (see below), whose sum is σ = 42318878353920. Its totient is φ = 42183370875240.

The previous prime is 42251123354413. The next prime is 42251123354521. The reversal of 42251123354443 is 34445332115224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42251123354443 - 2²⁹ = 42250586483531 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42251123354443.

It is not an unprimeable number, because it can be changed into a prime (42251123354413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34493646 + ... + 35697532.

It is an arithmetic number, because the mean of its divisors is an integer number (5289859794240).

Almost surely, 2^{42251123354443} is an apocalyptic number.

42251123354443 is a deficient number, since it is larger than the sum of its proper divisors (67754999477).

42251123354443 is a wasteful number, since it uses less digits than its factorization.

42251123354443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260137.

The product of its digits is 1382400, while the sum is 43.

Adding to 42251123354443 its reverse (34445332115224), we get a palindrome (76696455469667).

The spelling of 42251123354443 in words is "forty-two trillion, two hundred fifty-one billion, one hundred twenty-three million, three hundred fifty-four thousand, four hundred forty-three".