42141231322145 has 8 divisors (see below), whose sum is σ = 50696856625704. Its totient is φ = 33628065698304.

The previous prime is 42141231322123. The next prime is 42141231322153. The reversal of 42141231322145 is 54122313214124.

It can be written as a sum of positive squares in 4 ways, for example, as 8638620357409 + 33502610964736 = 2939153^2 + 5788144^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42141231322145 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10614917744 + ... + 10614921713.

It is an arithmetic number, because the mean of its divisors is an integer number (6337107078213).

Almost surely, 2^{42141231322145} is an apocalyptic number.

It is an amenable number.

42141231322145 is a deficient number, since it is larger than the sum of its proper divisors (8555625303559).

42141231322145 is a wasteful number, since it uses less digits than its factorization.

42141231322145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21229839859.

The product of its digits is 46080, while the sum is 35.

Adding to 42141231322145 its reverse (54122313214124), we get a palindrome (96263544536269).

The spelling of 42141231322145 in words is "forty-two trillion, one hundred forty-one billion, two hundred thirty-one million, three hundred twenty-two thousand, one hundred forty-five".