42343440351 has 4 divisors (see below), whose sum is σ = 56457920472. Its totient is φ = 28228960232.

The previous prime is 42343440301. The next prime is 42343440379. The reversal of 42343440351 is 15304434324.

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

It is a cyclic number.

It is not a de Polignac number, because 42343440351 - 2¹⁷ = 42343309279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42343440301) 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, 7057240056 + ... + 7057240061.

It is an arithmetic number, because the mean of its divisors is an integer number (14114480118).

Almost surely, 2^42343440351 is an apocalyptic number.

42343440351 is a deficient number, since it is larger than the sum of its proper divisors (14114480121).

42343440351 is a wasteful number, since it uses less digits than its factorization.

42343440351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14114480120.

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 42343440351 its reverse (15304434324), we get a palindrome (57647874675).

The spelling of 42343440351 in words is "forty-two billion, three hundred forty-three million, four hundred forty thousand, three hundred fifty-one".