42141172141 has 2 divisors, whose sum is σ = 42141172142. Its totient is φ = 42141172140.

The previous prime is 42141172133. The next prime is 42141172153. The reversal of 42141172141 is 14127114124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42121405225 + 19766916 = 205235^2 + 4446^2 .

It is a cyclic number.

It is not a de Polignac number, because 42141172141 - 2³ = 42141172133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42141172841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21070586070 + 21070586071.

It is an arithmetic number, because the mean of its divisors is an integer number (21070586071).

Almost surely, 2^42141172141 is an apocalyptic number.

It is an amenable number.

42141172141 is a deficient number, since it is larger than the sum of its proper divisors (1).

42141172141 is an equidigital number, since it uses as much as digits as its factorization.

42141172141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1792, while the sum is 28.

Adding to 42141172141 its reverse (14127114124), we get a palindrome (56268286265).

The spelling of 42141172141 in words is "forty-two billion, one hundred forty-one million, one hundred seventy-two thousand, one hundred forty-one".