42003123343 has 8 divisors (see below), whose sum is σ = 43072779456. Its totient is φ = 40935619200.

The previous prime is 42003123311. The next prime is 42003123367. The reversal of 42003123343 is 34332130024.

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 42003123343 - 2⁵ = 42003123311 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 (42003120343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498423 + ... + 576568.

It is an arithmetic number, because the mean of its divisors is an integer number (5384097432).

Almost surely, 2^42003123343 is an apocalyptic number.

42003123343 is a deficient number, since it is larger than the sum of its proper divisors (1069656113).

42003123343 is a wasteful number, since it uses less digits than its factorization.

42003123343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075985.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 42003123343 its reverse (34332130024), we get a palindrome (76335253367).

The spelling of 42003123343 in words is "forty-two billion, three million, one hundred twenty-three thousand, three hundred forty-three".